{"title":"Cylinder Heads","description":"","products":[{"product_id":"brodix-br5-3-small-bore-cylinder-head-cathedral-port-245cc-2-02-1-55-valve-job-6-bolt-each","title":"Brodix BR5.3 Small Bore Cylinder Head Cathedral Port 245CC 2.02 \/ 1.55 Valve Job 6-Bolt, Each","description":"\u003cp\u003e\u003cstrong\u003eBR 5.3\u003cbr\u003e\u003c\/strong\u003e\u003cspan class=\"s1\"\u003e LS Compatible\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e 13.5 Valve Angle\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e Intake Port Flows 298 cfm\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e Exhaust Port Flows Over 180 cfm\u003c\/span\u003e\u003cspan class=\"s1\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e 2.020 \/ 1.550 Valve Sizes\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e Out-of-the-Box Horsepower\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e Thick Deck for Nitrous\/Blown Applications\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e Toughest Castings in the Business\u003c\/span\u003e\u003c\/p\u003e","brand":"Brodix","offers":[{"title":"Default Title","offer_id":62492752740701,"sku":"BRO1176000","price":20767.78,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/br_5_exhaust.jpg?v=1762439023"},{"product_id":"beg706-003","title":"Used 706 Cylinder Head #003","description":"\u003cdiv class=\"product-description used-ls-706-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 706 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 706 cylinder head\u003c\/strong\u003e. The 706 casting is a cathedral port LS cylinder head commonly found on 4.8L and 5.3L GM LS-based engines, including applications such as \u003cstrong\u003eLM7, L59, LM4\u003c\/strong\u003e and \u003cstrong\u003eLR4\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e706 heads are popular for stock replacement, budget LS builds and small-bore LS applications where the smaller combustion chamber helps maintain or increase compression. They are often used in LS combinations where a simple, affordable factory cylinder head is preferred over more expensive aftermarket options.\u003c\/p\u003e\n\n\u003cp\u003eBecause of the smaller combustion chamber, 706 heads are also commonly used in budget performance builds where increasing compression is part of the engine combination. This makes them a popular choice for cost-conscious LS builds, including some high power turbo or supercharged setups when combined with the right short block, camshaft, fuel system and tuning.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 706 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 4.8L and 5.3L LS engines such as LM7, L59, LM4 and LR4.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 706 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e4.8L and 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003eLM7, L59, LM4, LR4 and similar LS engine applications\u003c\/li\u003e\n\u003cli\u003eStock replacement and repair work\u003c\/li\u003e\n\u003cli\u003eBudget LS engine builds and rebuilds\u003c\/li\u003e\n\u003cli\u003eLS combinations where a smaller combustion chamber is used to help increase compression\u003c\/li\u003e\n\u003cli\u003eSmall-bore LS applications where 706-style heads are required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 706\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 4.8L \/ 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LM7, L59, LM4, LR4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 61cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 1.89 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e63 cfm\u003c\/td\u003e\n\u003ctd\u003e54 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e128 cfm\u003c\/td\u003e\n\u003ctd\u003e93 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003ctd\u003e121 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e210 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e218 cfm\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e221 cfm\u003c\/td\u003e\n\u003ctd\u003e168 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e226 cfm\u003c\/td\u003e\n\u003ctd\u003e174 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 706 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63095730602333,"sku":"BEG706-003","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/45292555-9390-4616-AC8D-E7B559926222.jpg?v=1768297574"},{"product_id":"beg706-004","title":"Used 706 Cylinder Head #004","description":"\u003cdiv class=\"product-description used-ls-706-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 706 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 706 cylinder head\u003c\/strong\u003e. The 706 casting is a cathedral port LS cylinder head commonly found on 4.8L and 5.3L GM LS-based engines, including applications such as \u003cstrong\u003eLM7, L59, LM4\u003c\/strong\u003e and \u003cstrong\u003eLR4\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e706 heads are popular for stock replacement, budget LS builds and small-bore LS applications where the smaller combustion chamber helps maintain or increase compression. They are often used in LS combinations where a simple, affordable factory cylinder head is preferred over more expensive aftermarket options.\u003c\/p\u003e\n\n\u003cp\u003eBecause of the smaller combustion chamber, 706 heads are also commonly used in budget performance builds where increasing compression is part of the engine combination. This makes them a popular choice for cost-conscious LS builds, including some high power turbo or supercharged setups when combined with the right short block, camshaft, fuel system and tuning.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 706 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 4.8L and 5.3L LS engines such as LM7, L59, LM4 and LR4.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 706 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e4.8L and 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003eLM7, L59, LM4, LR4 and similar LS engine applications\u003c\/li\u003e\n\u003cli\u003eStock replacement and repair work\u003c\/li\u003e\n\u003cli\u003eBudget LS engine builds and rebuilds\u003c\/li\u003e\n\u003cli\u003eLS combinations where a smaller combustion chamber is used to help increase compression\u003c\/li\u003e\n\u003cli\u003eSmall-bore LS applications where 706-style heads are required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 706\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 4.8L \/ 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LM7, L59, LM4, LR4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 61cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 1.89 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e63 cfm\u003c\/td\u003e\n\u003ctd\u003e54 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e128 cfm\u003c\/td\u003e\n\u003ctd\u003e93 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003ctd\u003e121 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e210 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e218 cfm\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e221 cfm\u003c\/td\u003e\n\u003ctd\u003e168 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e226 cfm\u003c\/td\u003e\n\u003ctd\u003e174 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 706 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63095771201885,"sku":"BEG706-004","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/CBA0F70F-B12B-449C-9A32-0B1B9DC5C6B7.jpg?v=1768339962"},{"product_id":"beg5364-005","title":"Used 5364 Cylinder Head #005","description":"\u003cdiv class=\"product-description used-ls-5364-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 5364 Cylinder Head, Rectangular Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 5364 cylinder head\u003c\/strong\u003e. The 5364 casting is a rectangular port LS cylinder head commonly associated with later Gen IV 6.0L and 6.2L LS-based engines, including applications such as \u003cstrong\u003eLS3, L92, L99, L76, L77, LY6, L96, L94\u003c\/strong\u003e and \u003cstrong\u003eL9H\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e5364 heads are part of the same general rectangular port family as the well-known 821 and 823 castings. They offer strong factory airflow compared to earlier cathedral port heads such as 706, 862, 241 and 317, making them a popular option for performance LS builds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads work especially well on 6.0L and 6.2L LS combinations where the larger rectangular intake port, larger valves and strong factory airflow can be used properly. They are commonly used in naturally aspirated, cammed, turbo and supercharged LS builds where a high-flowing OEM GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 5364 cylinder head is intended for GM LS rectangular port applications. It is commonly associated with LS3, L92 and similar Gen IV LS engines.\u003c\/p\u003e\n\n\u003cp\u003eRectangular port LS heads use matching rectangular port intake manifolds and the correct LS3\/L92-style rocker arm setup. They are not a direct match for cathedral port intake manifolds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads are generally best suited for engines with a 4.00 inch bore or larger. Always compare the casting number, port shape, combustion chamber style, valve size, intake manifold style and rocker arm setup with your original engine before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 5364 rectangular port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS3, L92, L99, L76, L77, LY6, L96, L94, L9H and similar LS engines\u003c\/li\u003e\n\u003cli\u003e6.0L and 6.2L LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eNaturally aspirated, turbo and supercharged LS combinations\u003c\/li\u003e\n\u003cli\u003eCammed street engines and high airflow LS builds\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 5364\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS rectangular port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Gen IV LS-based engines with rectangular port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS3, L92, L99, L76, L77, LY6, L96, L94, L9H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 257-280cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 87-93cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.165 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.590 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort style:\u003c\/strong\u003e Rectangular intake port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e75 cfm\u003c\/td\u003e\n\u003ctd\u003e50 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e233 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e277 cfm\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e317 cfm\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e326 cfm\u003c\/td\u003e\n\u003ctd\u003e202 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.700\"\u003c\/td\u003e\n\u003ctd\u003e324 cfm\u003c\/td\u003e\n\u003ctd\u003e206 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 5364 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63095799775581,"sku":"BEG5364-005","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/6EFAA7DF-9279-4E6E-B4FE-6D63607F9EBD.jpg?v=1768298025"},{"product_id":"beg5364-006","title":"Used 5364 Cylinder Head #006","description":"\u003cdiv class=\"product-description used-ls-5364-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 5364 Cylinder Head, Rectangular Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 5364 cylinder head\u003c\/strong\u003e. The 5364 casting is a rectangular port LS cylinder head commonly associated with later Gen IV 6.0L and 6.2L LS-based engines, including applications such as \u003cstrong\u003eLS3, L92, L99, L76, L77, LY6, L96, L94\u003c\/strong\u003e and \u003cstrong\u003eL9H\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e5364 heads are part of the same general rectangular port family as the well-known 821 and 823 castings. They offer strong factory airflow compared to earlier cathedral port heads such as 706, 862, 241 and 317, making them a popular option for performance LS builds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads work especially well on 6.0L and 6.2L LS combinations where the larger rectangular intake port, larger valves and strong factory airflow can be used properly. They are commonly used in naturally aspirated, cammed, turbo and supercharged LS builds where a high-flowing OEM GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 5364 cylinder head is intended for GM LS rectangular port applications. It is commonly associated with LS3, L92 and similar Gen IV LS engines.\u003c\/p\u003e\n\n\u003cp\u003eRectangular port LS heads use matching rectangular port intake manifolds and the correct LS3\/L92-style rocker arm setup. They are not a direct match for cathedral port intake manifolds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads are generally best suited for engines with a 4.00 inch bore or larger. Always compare the casting number, port shape, combustion chamber style, valve size, intake manifold style and rocker arm setup with your original engine before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 5364 rectangular port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS3, L92, L99, L76, L77, LY6, L96, L94, L9H and similar LS engines\u003c\/li\u003e\n\u003cli\u003e6.0L and 6.2L LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eNaturally aspirated, turbo and supercharged LS combinations\u003c\/li\u003e\n\u003cli\u003eCammed street engines and high airflow LS builds\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 5364\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS rectangular port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Gen IV LS-based engines with rectangular port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS3, L92, L99, L76, L77, LY6, L96, L94, L9H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 257-280cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 87-93cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.165 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.590 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort style:\u003c\/strong\u003e Rectangular intake port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e75 cfm\u003c\/td\u003e\n\u003ctd\u003e50 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e233 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e277 cfm\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e317 cfm\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e326 cfm\u003c\/td\u003e\n\u003ctd\u003e202 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.700\"\u003c\/td\u003e\n\u003ctd\u003e324 cfm\u003c\/td\u003e\n\u003ctd\u003e206 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 5364 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63095962698077,"sku":"BEG5364-006","price":2800.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/E36ED5B4-E061-4E7F-A1BB-B16D91884327.jpg?v=1768340005"},{"product_id":"used-ls-cylinder-head-template-1","title":"Used 873 Cylinder Head #042","description":"\u003cp\u003eSee pictures for condition\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096010277213,"sku":"BEG873-042","price":2000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/5EE342CF-5E7E-443F-ACD2-1EB39468866E.jpg?v=1768386317"},{"product_id":"beg317-008","title":"Used 317 Cylinder Head #008","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096012865885,"sku":"BEG317-008","price":800.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/2EF376F4-4E0E-4C30-BA69-F1F8A936C643.jpg?v=1773346630"},{"product_id":"beg823-009","title":"Used 823 Cylinder Head #009","description":"\u003cdiv class=\"product-description used-ls-823-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 823 Cylinder Head, Rectangular Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 823 cylinder head\u003c\/strong\u003e. The 823 casting is a rectangular port LS cylinder head commonly found on later Gen IV 6.0L and 6.2L LS-based engines, including applications such as \u003cstrong\u003eLS3, L92, L99, L76, L77, LY6, L96, L94\u003c\/strong\u003e and \u003cstrong\u003eL9H\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e823 heads are one of the most popular factory rectangular port LS heads. They offer significantly better airflow than earlier cathedral port truck heads such as 706, 862, 241 and 317, making them a strong option for performance LS builds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads work especially well on 6.0L and 6.2L LS combinations where the larger rectangular intake port, larger valves and strong factory airflow can be used properly. They are commonly used in naturally aspirated, cammed, turbo and supercharged LS builds where a high-flowing OEM GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 823 cylinder head is intended for GM LS rectangular port applications. It is commonly associated with LS3, L92 and similar Gen IV LS engines.\u003c\/p\u003e\n\n\u003cp\u003eRectangular port LS heads use matching rectangular port intake manifolds and the correct LS3\/L92-style rocker arm setup. They are not a direct match for cathedral port intake manifolds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads are generally best suited for engines with a 4.00 inch bore or larger. Always compare the casting number, port shape, combustion chamber style, valve size, intake manifold style and rocker arm setup with your original engine before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 823 rectangular port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS3, L92, L99, L76, L77, LY6, L96, L94, L9H and similar LS engines\u003c\/li\u003e\n\u003cli\u003e6.0L and 6.2L LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eNaturally aspirated, turbo and supercharged LS combinations\u003c\/li\u003e\n\u003cli\u003eCammed street engines and high airflow LS builds\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 823\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS rectangular port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Gen IV LS-based engines with rectangular port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS3, L92, L99, L76, L77, LY6, L96, L94, L9H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 257-280cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 87-93cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.165 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.590 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort style:\u003c\/strong\u003e Rectangular intake port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e75 cfm\u003c\/td\u003e\n\u003ctd\u003e50 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e233 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e277 cfm\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e317 cfm\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e326 cfm\u003c\/td\u003e\n\u003ctd\u003e202 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.700\"\u003c\/td\u003e\n\u003ctd\u003e324 cfm\u003c\/td\u003e\n\u003ctd\u003e206 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 823 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096018370909,"sku":"BEG823-009","price":2800.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/CC179958-418E-4A98-81D6-A13B89FE48CC.jpg?v=1768340767"},{"product_id":"beg317-011","title":"Used 317 Cylinder Head #011","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096052056413,"sku":"BEG317-011","price":800.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/CEDD3A54-2F26-4423-818C-8C9B99DC83D0.jpg?v=1768471343"},{"product_id":"beg799-012","title":"Used 799 Cylinder Head #012","description":"\u003cdiv class=\"product-description used-ls-799-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 799 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 799 cylinder head\u003c\/strong\u003e. The 799 casting is a cathedral port LS cylinder head commonly found on later 5.3L GM LS-based engines and is often considered very similar in performance to the well-known 243 casting.\u003c\/p\u003e\n\n\u003cp\u003e799 heads are one of the more desirable factory cathedral port LS heads. They offer strong factory airflow compared to earlier 4.8L \/ 5.3L truck heads such as 706 and 862, while still using the factory cathedral port layout.\u003c\/p\u003e\n\n\u003cp\u003eWith an efficient combustion chamber and good OEM airflow, 799 heads are a popular choice for naturally aspirated LS builds, cammed street engines, mild boost combinations and performance upgrades where a factory GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 799 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with later 5.3L LS engines and may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 799 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLater 5.3L LS-based engines using 799-style heads\u003c\/li\u003e\n\u003cli\u003e5.3L, 5.7L, 6.0L and compatible LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eCammed street engines and naturally aspirated LS builds\u003c\/li\u003e\n\u003cli\u003eMild turbo or supercharged LS combinations where this chamber and port style is suitable\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 799\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM LS-based engines with cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e Later 5.3L LS engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 64.5cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e62 cfm\u003c\/td\u003e\n\u003ctd\u003e57 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e126 cfm\u003c\/td\u003e\n\u003ctd\u003e108 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e184 cfm\u003c\/td\u003e\n\u003ctd\u003e143 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e224 cfm\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e251 cfm\u003c\/td\u003e\n\u003ctd\u003e176 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e256 cfm\u003c\/td\u003e\n\u003ctd\u003e180 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e257 cfm\u003c\/td\u003e\n\u003ctd\u003e183 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 799 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096126112093,"sku":"BEG799-012","price":2000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/1E961C36-1BA5-423F-9425-CC8474256E5E.jpg?v=1768983040"},{"product_id":"beg317-013","title":"Used 317 Cylinder Head #013","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096172216669,"sku":"BEG317-013","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/67810D82-BE81-4497-803C-2256FC7606E2.jpg?v=1768303861"},{"product_id":"beg317-014","title":"Used 317 Cylinder Head #014","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096231821661,"sku":"BEG317-014","price":800.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/DCE630F7-A0C1-4047-895E-AA44FF0E0ED2.jpg?v=1768304034"},{"product_id":"beg317-015","title":"Used 317 Cylinder Head #015","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096244044125,"sku":"BEG317-015","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/8C294323-38BA-4D7C-81D7-04E8D23B11E9.jpg?v=1768304200"},{"product_id":"used-214-cylinder-head-016","title":"Used 214 Cylinder Head #016","description":"\u003cp\u003eSee pictures for condition\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096284119389,"sku":"BEG214-016","price":2000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/BB1D078B-2FF8-432D-A790-BC2AC64A3767.jpg?v=1768474064"},{"product_id":"beg823-017","title":"Used 823 Cylinder Head #017","description":"\u003cdiv class=\"product-description used-ls-823-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 823 Cylinder Head, Rectangular Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 823 cylinder head\u003c\/strong\u003e. The 823 casting is a rectangular port LS cylinder head commonly found on later Gen IV 6.0L and 6.2L LS-based engines, including applications such as \u003cstrong\u003eLS3, L92, L99, L76, L77, LY6, L96, L94\u003c\/strong\u003e and \u003cstrong\u003eL9H\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e823 heads are one of the most popular factory rectangular port LS heads. They offer significantly better airflow than earlier cathedral port truck heads such as 706, 862, 241 and 317, making them a strong option for performance LS builds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads work especially well on 6.0L and 6.2L LS combinations where the larger rectangular intake port, larger valves and strong factory airflow can be used properly. They are commonly used in naturally aspirated, cammed, turbo and supercharged LS builds where a high-flowing OEM GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 823 cylinder head is intended for GM LS rectangular port applications. It is commonly associated with LS3, L92 and similar Gen IV LS engines.\u003c\/p\u003e\n\n\u003cp\u003eRectangular port LS heads use matching rectangular port intake manifolds and the correct LS3\/L92-style rocker arm setup. They are not a direct match for cathedral port intake manifolds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads are generally best suited for engines with a 4.00 inch bore or larger. Always compare the casting number, port shape, combustion chamber style, valve size, intake manifold style and rocker arm setup with your original engine before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 823 rectangular port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS3, L92, L99, L76, L77, LY6, L96, L94, L9H and similar LS engines\u003c\/li\u003e\n\u003cli\u003e6.0L and 6.2L LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eNaturally aspirated, turbo and supercharged LS combinations\u003c\/li\u003e\n\u003cli\u003eCammed street engines and high airflow LS builds\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 823\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS rectangular port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Gen IV LS-based engines with rectangular port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS3, L92, L99, L76, L77, LY6, L96, L94, L9H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 257-280cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 87-93cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.165 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.590 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort style:\u003c\/strong\u003e Rectangular intake port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e75 cfm\u003c\/td\u003e\n\u003ctd\u003e50 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e233 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e277 cfm\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e317 cfm\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e326 cfm\u003c\/td\u003e\n\u003ctd\u003e202 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.700\"\u003c\/td\u003e\n\u003ctd\u003e324 cfm\u003c\/td\u003e\n\u003ctd\u003e206 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 823 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096295588189,"sku":"BEG823-017","price":2400.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/F2837077-94E5-4ED1-9E0C-35BAE701A867.jpg?v=1768474186"},{"product_id":"beg823-018","title":"Used 823 Cylinder Head #018","description":"\u003cdiv class=\"product-description used-ls-823-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 823 Cylinder Head, Rectangular Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 823 cylinder head\u003c\/strong\u003e. The 823 casting is a rectangular port LS cylinder head commonly found on later Gen IV 6.0L and 6.2L LS-based engines, including applications such as \u003cstrong\u003eLS3, L92, L99, L76, L77, LY6, L96, L94\u003c\/strong\u003e and \u003cstrong\u003eL9H\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e823 heads are one of the most popular factory rectangular port LS heads. They offer significantly better airflow than earlier cathedral port truck heads such as 706, 862, 241 and 317, making them a strong option for performance LS builds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads work especially well on 6.0L and 6.2L LS combinations where the larger rectangular intake port, larger valves and strong factory airflow can be used properly. They are commonly used in naturally aspirated, cammed, turbo and supercharged LS builds where a high-flowing OEM GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 823 cylinder head is intended for GM LS rectangular port applications. It is commonly associated with LS3, L92 and similar Gen IV LS engines.\u003c\/p\u003e\n\n\u003cp\u003eRectangular port LS heads use matching rectangular port intake manifolds and the correct LS3\/L92-style rocker arm setup. They are not a direct match for cathedral port intake manifolds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads are generally best suited for engines with a 4.00 inch bore or larger. Always compare the casting number, port shape, combustion chamber style, valve size, intake manifold style and rocker arm setup with your original engine before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 823 rectangular port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS3, L92, L99, L76, L77, LY6, L96, L94, L9H and similar LS engines\u003c\/li\u003e\n\u003cli\u003e6.0L and 6.2L LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eNaturally aspirated, turbo and supercharged LS combinations\u003c\/li\u003e\n\u003cli\u003eCammed street engines and high airflow LS builds\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 823\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS rectangular port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Gen IV LS-based engines with rectangular port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS3, L92, L99, L76, L77, LY6, L96, L94, L9H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 257-280cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 87-93cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.165 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.590 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort style:\u003c\/strong\u003e Rectangular intake port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e75 cfm\u003c\/td\u003e\n\u003ctd\u003e50 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e233 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e277 cfm\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e317 cfm\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e326 cfm\u003c\/td\u003e\n\u003ctd\u003e202 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.700\"\u003c\/td\u003e\n\u003ctd\u003e324 cfm\u003c\/td\u003e\n\u003ctd\u003e206 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 823 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096309154141,"sku":"BEG823-018","price":3200.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/C15A7FC7-7776-4D1C-8858-C3F26C94BB99.jpg?v=1768474393"},{"product_id":"beg823-019","title":"Used 823 Cylinder Head #019","description":"\u003cdiv class=\"product-description used-ls-823-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 823 Cylinder Head, Rectangular Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 823 cylinder head\u003c\/strong\u003e. The 823 casting is a rectangular port LS cylinder head commonly found on later Gen IV 6.0L and 6.2L LS-based engines, including applications such as \u003cstrong\u003eLS3, L92, L99, L76, L77, LY6, L96, L94\u003c\/strong\u003e and \u003cstrong\u003eL9H\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e823 heads are one of the most popular factory rectangular port LS heads. They offer significantly better airflow than earlier cathedral port truck heads such as 706, 862, 241 and 317, making them a strong option for performance LS builds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads work especially well on 6.0L and 6.2L LS combinations where the larger rectangular intake port, larger valves and strong factory airflow can be used properly. They are commonly used in naturally aspirated, cammed, turbo and supercharged LS builds where a high-flowing OEM GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 823 cylinder head is intended for GM LS rectangular port applications. It is commonly associated with LS3, L92 and similar Gen IV LS engines.\u003c\/p\u003e\n\n\u003cp\u003eRectangular port LS heads use matching rectangular port intake manifolds and the correct LS3\/L92-style rocker arm setup. They are not a direct match for cathedral port intake manifolds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads are generally best suited for engines with a 4.00 inch bore or larger. Always compare the casting number, port shape, combustion chamber style, valve size, intake manifold style and rocker arm setup with your original engine before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 823 rectangular port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS3, L92, L99, L76, L77, LY6, L96, L94, L9H and similar LS engines\u003c\/li\u003e\n\u003cli\u003e6.0L and 6.2L LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eNaturally aspirated, turbo and supercharged LS combinations\u003c\/li\u003e\n\u003cli\u003eCammed street engines and high airflow LS builds\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 823\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS rectangular port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Gen IV LS-based engines with rectangular port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS3, L92, L99, L76, L77, LY6, L96, L94, L9H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 257-280cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 87-93cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.165 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.590 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort style:\u003c\/strong\u003e Rectangular intake port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e75 cfm\u003c\/td\u003e\n\u003ctd\u003e50 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e233 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e277 cfm\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e317 cfm\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e326 cfm\u003c\/td\u003e\n\u003ctd\u003e202 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.700\"\u003c\/td\u003e\n\u003ctd\u003e324 cfm\u003c\/td\u003e\n\u003ctd\u003e206 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 823 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096370168157,"sku":"BEG823-019","price":2000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/78312BD2-B247-4565-A5D2-4B786330E57C.jpg?v=1768474499"},{"product_id":"beg317-021","title":"Used 317 Cylinder Head #021","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096513331549,"sku":"BEG317-021","price":800.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/67D72033-7B0A-430D-91EE-A47036A95E9C.jpg?v=1769369456"},{"product_id":"beg317-023","title":"Used 317 Cylinder Head #023","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096563466589,"sku":"BEG317-023","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/A82F8CB0-B473-47A7-BABB-7DC379E05B59.jpg?v=1769369660"},{"product_id":"beg317-024","title":"Used 317 Cylinder Head #024","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096594661725,"sku":"BEG317-024","price":1000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/3B3092FD-AB56-4CF0-94B9-679CAD87F6F6.jpg?v=1769369741"},{"product_id":"beg806-025","title":"Used 806 Cylinder Head #025","description":"\u003cdiv class=\"product-description used-ls-806-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 806 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 806 cylinder head\u003c\/strong\u003e. The 806 casting is an early cathedral port LS cylinder head commonly associated with \u003cstrong\u003eLS1\u003c\/strong\u003e and early Gen III LS-based engines.\u003c\/p\u003e\n\n\u003cp\u003e806 heads are a factory LS cathedral port head often used for stock replacement, repair work and early LS1-style builds. They are not as sought after as later 243 or 799 heads, but they are still a useful OEM GM casting for many LS applications where the early head design is required.\u003c\/p\u003e\n\n\u003cp\u003eOne important difference with 806 heads is the \u003cstrong\u003eearly perimeter bolt valve cover design\u003c\/strong\u003e. These heads do not use the later center bolt LS valve covers, so make sure you have the correct valve covers, coil bracket setup and related parts for this style of cylinder head.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 806 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with early LS1-style Gen III LS engines, but may also be used in other LS-based combinations where the chamber size, valve size, valve cover style and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size, valve cover bolt pattern and cylinder head bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 806 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eEarly LS1-style Gen III LS-based engines\u003c\/li\u003e\n\u003cli\u003e5.7L LS1-style stock replacement and rebuilds\u003c\/li\u003e\n\u003cli\u003eBudget LS engine repairs and mild performance builds\u003c\/li\u003e\n\u003cli\u003eApplications using early perimeter bolt LS valve covers\u003c\/li\u003e\n\u003cli\u003eLS combinations where a factory cathedral port head is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 806\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM LS-based engines with cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e Early LS1-style Gen III LS engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve cover style:\u003c\/strong\u003e Early perimeter bolt valve covers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 67cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e67 cfm\u003c\/td\u003e\n\u003ctd\u003e52 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e122 cfm\u003c\/td\u003e\n\u003ctd\u003e97 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e178 cfm\u003c\/td\u003e\n\u003ctd\u003e133 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e215 cfm\u003c\/td\u003e\n\u003ctd\u003e156 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e219 cfm\u003c\/td\u003e\n\u003ctd\u003e170 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e223 cfm\u003c\/td\u003e\n\u003ctd\u003e176 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e227 cfm\u003c\/td\u003e\n\u003ctd\u003e180 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 806 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096603017565,"sku":"BEG806-025","price":2000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/E000AAB4-C733-45C6-9A88-B2B86561108B.jpg?v=1769376620"},{"product_id":"beg806-026","title":"Used 806 Cylinder Head #026","description":"\u003cdiv class=\"product-description used-ls-806-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 806 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 806 cylinder head\u003c\/strong\u003e. The 806 casting is an early cathedral port LS cylinder head commonly associated with \u003cstrong\u003eLS1\u003c\/strong\u003e and early Gen III LS-based engines.\u003c\/p\u003e\n\n\u003cp\u003e806 heads are a factory LS cathedral port head often used for stock replacement, repair work and early LS1-style builds. They are not as sought after as later 243 or 799 heads, but they are still a useful OEM GM casting for many LS applications where the early head design is required.\u003c\/p\u003e\n\n\u003cp\u003eOne important difference with 806 heads is the \u003cstrong\u003eearly perimeter bolt valve cover design\u003c\/strong\u003e. These heads do not use the later center bolt LS valve covers, so make sure you have the correct valve covers, coil bracket setup and related parts for this style of cylinder head.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 806 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with early LS1-style Gen III LS engines, but may also be used in other LS-based combinations where the chamber size, valve size, valve cover style and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size, valve cover bolt pattern and cylinder head bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 806 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eEarly LS1-style Gen III LS-based engines\u003c\/li\u003e\n\u003cli\u003e5.7L LS1-style stock replacement and rebuilds\u003c\/li\u003e\n\u003cli\u003eBudget LS engine repairs and mild performance builds\u003c\/li\u003e\n\u003cli\u003eApplications using early perimeter bolt LS valve covers\u003c\/li\u003e\n\u003cli\u003eLS combinations where a factory cathedral port head is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 806\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM LS-based engines with cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e Early LS1-style Gen III LS engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve cover style:\u003c\/strong\u003e Early perimeter bolt valve covers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 67cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e67 cfm\u003c\/td\u003e\n\u003ctd\u003e52 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e122 cfm\u003c\/td\u003e\n\u003ctd\u003e97 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e178 cfm\u003c\/td\u003e\n\u003ctd\u003e133 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e215 cfm\u003c\/td\u003e\n\u003ctd\u003e156 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e219 cfm\u003c\/td\u003e\n\u003ctd\u003e170 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e223 cfm\u003c\/td\u003e\n\u003ctd\u003e176 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e227 cfm\u003c\/td\u003e\n\u003ctd\u003e180 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 806 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096610685277,"sku":"BEG806-026","price":2000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/EA53D52E-B351-4F79-836D-8733EB92194D.jpg?v=1769376642"},{"product_id":"beg317-027","title":"Used 317 Cylinder Head #027","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096646599005,"sku":"BEG317-027","price":1200.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/E6F953E9-603B-4B6F-B6BF-486AECEE9F2A.jpg?v=1769376659"},{"product_id":"beg706-028","title":"Used 706 Cylinder Head #028","description":"\u003cdiv class=\"product-description used-ls-706-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 706 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 706 cylinder head\u003c\/strong\u003e. The 706 casting is a cathedral port LS cylinder head commonly found on 4.8L and 5.3L GM LS-based engines, including applications such as \u003cstrong\u003eLM7, L59, LM4\u003c\/strong\u003e and \u003cstrong\u003eLR4\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e706 heads are popular for stock replacement, budget LS builds and small-bore LS applications where the smaller combustion chamber helps maintain or increase compression. They are often used in LS combinations where a simple, affordable factory cylinder head is preferred over more expensive aftermarket options.\u003c\/p\u003e\n\n\u003cp\u003eBecause of the smaller combustion chamber, 706 heads are also commonly used in budget performance builds where increasing compression is part of the engine combination. This makes them a popular choice for cost-conscious LS builds, including some high power turbo or supercharged setups when combined with the right short block, camshaft, fuel system and tuning.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 706 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 4.8L and 5.3L LS engines such as LM7, L59, LM4 and LR4.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 706 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e4.8L and 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003eLM7, L59, LM4, LR4 and similar LS engine applications\u003c\/li\u003e\n\u003cli\u003eStock replacement and repair work\u003c\/li\u003e\n\u003cli\u003eBudget LS engine builds and rebuilds\u003c\/li\u003e\n\u003cli\u003eLS combinations where a smaller combustion chamber is used to help increase compression\u003c\/li\u003e\n\u003cli\u003eSmall-bore LS applications where 706-style heads are required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 706\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 4.8L \/ 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LM7, L59, LM4, LR4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 61cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 1.89 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e63 cfm\u003c\/td\u003e\n\u003ctd\u003e54 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e128 cfm\u003c\/td\u003e\n\u003ctd\u003e93 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003ctd\u003e121 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e210 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e218 cfm\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e221 cfm\u003c\/td\u003e\n\u003ctd\u003e168 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e226 cfm\u003c\/td\u003e\n\u003ctd\u003e174 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 706 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096647254365,"sku":"BEG706-028","price":1200.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/688BCD39-E586-47A6-99D8-BD487BA639F9.jpg?v=1769376795"},{"product_id":"beg862-029","title":"Used 862 Cylinder Head #029","description":"\u003cdiv class=\"product-description used-ls-862-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 862 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 862 cylinder head\u003c\/strong\u003e. The 862 casting is a cathedral port LS cylinder head commonly found on 4.8L and 5.3L GM LS-based engines, including applications such as \u003cstrong\u003eLM7, L59, LM4\u003c\/strong\u003e and \u003cstrong\u003eLR4\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e862 heads are popular for stock replacement, budget LS builds and small-bore LS applications where the smaller combustion chamber helps maintain or increase compression. They are often used in LS combinations where a simple, affordable factory cylinder head is preferred over more expensive aftermarket options.\u003c\/p\u003e\n\n\u003cp\u003eBecause of the smaller combustion chamber, 862 heads are also commonly used in budget performance builds where increasing compression is part of the engine combination. This makes them a popular choice for cost-conscious LS builds, including some high power turbo or supercharged setups when combined with the right short block, camshaft, fuel system and tuning.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 862 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 4.8L and 5.3L LS engines such as LM7, L59, LM4 and LR4.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 862 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e4.8L and 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003eLM7, L59, LM4, LR4 and similar LS engine applications\u003c\/li\u003e\n\u003cli\u003eStock replacement and repair work\u003c\/li\u003e\n\u003cli\u003eBudget LS engine builds and rebuilds\u003c\/li\u003e\n\u003cli\u003eLS combinations where a smaller combustion chamber is used to help increase compression\u003c\/li\u003e\n\u003cli\u003eSmall-bore LS applications where 862-style heads are required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 862\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 4.8L \/ 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LM7, L59, LM4, LR4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 61cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 1.89 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e63 cfm\u003c\/td\u003e\n\u003ctd\u003e54 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e128 cfm\u003c\/td\u003e\n\u003ctd\u003e93 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003ctd\u003e121 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e210 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e218 cfm\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e221 cfm\u003c\/td\u003e\n\u003ctd\u003e168 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e226 cfm\u003c\/td\u003e\n\u003ctd\u003e174 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 862 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096649089373,"sku":"BEG862-029","price":1200.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/65897828-7416-4E6E-8C2D-22587A3BFFF1.jpg?v=1769376854"},{"product_id":"beg706-030","title":"Used 706 Cylinder Head #030","description":"\u003cdiv class=\"product-description used-ls-706-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 706 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 706 cylinder head\u003c\/strong\u003e. The 706 casting is a cathedral port LS cylinder head commonly found on 4.8L and 5.3L GM LS-based engines, including applications such as \u003cstrong\u003eLM7, L59, LM4\u003c\/strong\u003e and \u003cstrong\u003eLR4\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e706 heads are popular for stock replacement, budget LS builds and small-bore LS applications where the smaller combustion chamber helps maintain or increase compression. They are often used in LS combinations where a simple, affordable factory cylinder head is preferred over more expensive aftermarket options.\u003c\/p\u003e\n\n\u003cp\u003eBecause of the smaller combustion chamber, 706 heads are also commonly used in budget performance builds where increasing compression is part of the engine combination. This makes them a popular choice for cost-conscious LS builds, including some high power turbo or supercharged setups when combined with the right short block, camshaft, fuel system and tuning.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 706 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 4.8L and 5.3L LS engines such as LM7, L59, LM4 and LR4.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 706 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e4.8L and 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003eLM7, L59, LM4, LR4 and similar LS engine applications\u003c\/li\u003e\n\u003cli\u003eStock replacement and repair work\u003c\/li\u003e\n\u003cli\u003eBudget LS engine builds and rebuilds\u003c\/li\u003e\n\u003cli\u003eLS combinations where a smaller combustion chamber is used to help increase compression\u003c\/li\u003e\n\u003cli\u003eSmall-bore LS applications where 706-style heads are required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 706\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 4.8L \/ 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LM7, L59, LM4, LR4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 61cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 1.89 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e63 cfm\u003c\/td\u003e\n\u003ctd\u003e54 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e128 cfm\u003c\/td\u003e\n\u003ctd\u003e93 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003ctd\u003e121 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e210 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e218 cfm\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e221 cfm\u003c\/td\u003e\n\u003ctd\u003e168 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e226 cfm\u003c\/td\u003e\n\u003ctd\u003e174 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 706 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096654365021,"sku":"BEG706-030","price":1000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/81C3372D-1192-4A03-A6D6-880700E88DD7.jpg?v=1769376939"},{"product_id":"used-364-cylinder-head-031","title":"Used 364 Cylinder Head #031","description":"\u003cp\u003eSee pictures for condition\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096654922077,"sku":"BEG364-031","price":3600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/21EE4D49-4386-4E23-8AE3-5D695116C1DF.jpg?v=1768311713"},{"product_id":"beg5364-032","title":"Used 5364 Cylinder Head #032","description":"\u003cdiv class=\"product-description used-ls-5364-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 5364 Cylinder Head, Rectangular Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 5364 cylinder head\u003c\/strong\u003e. The 5364 casting is a rectangular port LS cylinder head commonly associated with later Gen IV 6.0L and 6.2L LS-based engines, including applications such as \u003cstrong\u003eLS3, L92, L99, L76, L77, LY6, L96, L94\u003c\/strong\u003e and \u003cstrong\u003eL9H\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e5364 heads are part of the same general rectangular port family as the well-known 821 and 823 castings. They offer strong factory airflow compared to earlier cathedral port heads such as 706, 862, 241 and 317, making them a popular option for performance LS builds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads work especially well on 6.0L and 6.2L LS combinations where the larger rectangular intake port, larger valves and strong factory airflow can be used properly. They are commonly used in naturally aspirated, cammed, turbo and supercharged LS builds where a high-flowing OEM GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 5364 cylinder head is intended for GM LS rectangular port applications. It is commonly associated with LS3, L92 and similar Gen IV LS engines.\u003c\/p\u003e\n\n\u003cp\u003eRectangular port LS heads use matching rectangular port intake manifolds and the correct LS3\/L92-style rocker arm setup. They are not a direct match for cathedral port intake manifolds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads are generally best suited for engines with a 4.00 inch bore or larger. Always compare the casting number, port shape, combustion chamber style, valve size, intake manifold style and rocker arm setup with your original engine before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 5364 rectangular port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS3, L92, L99, L76, L77, LY6, L96, L94, L9H and similar LS engines\u003c\/li\u003e\n\u003cli\u003e6.0L and 6.2L LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eNaturally aspirated, turbo and supercharged LS combinations\u003c\/li\u003e\n\u003cli\u003eCammed street engines and high airflow LS builds\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 5364\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS rectangular port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Gen IV LS-based engines with rectangular port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS3, L92, L99, L76, L77, LY6, L96, L94, L9H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 257-280cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 87-93cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.165 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.590 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort style:\u003c\/strong\u003e Rectangular intake port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e75 cfm\u003c\/td\u003e\n\u003ctd\u003e50 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e233 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e277 cfm\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e317 cfm\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e326 cfm\u003c\/td\u003e\n\u003ctd\u003e202 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.700\"\u003c\/td\u003e\n\u003ctd\u003e324 cfm\u003c\/td\u003e\n\u003ctd\u003e206 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 5364 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096794808669,"sku":"BEG5364-032","price":3600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/39BCAC48-4650-4F7D-8BB5-54D5822EA244.jpg?v=1768312397"},{"product_id":"beg823-034","title":"Used 823 Cylinder Head #034","description":"\u003cdiv class=\"product-description used-ls-823-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 823 Cylinder Head, Rectangular Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 823 cylinder head\u003c\/strong\u003e. The 823 casting is a rectangular port LS cylinder head commonly found on later Gen IV 6.0L and 6.2L LS-based engines, including applications such as \u003cstrong\u003eLS3, L92, L99, L76, L77, LY6, L96, L94\u003c\/strong\u003e and \u003cstrong\u003eL9H\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e823 heads are one of the most popular factory rectangular port LS heads. They offer significantly better airflow than earlier cathedral port truck heads such as 706, 862, 241 and 317, making them a strong option for performance LS builds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads work especially well on 6.0L and 6.2L LS combinations where the larger rectangular intake port, larger valves and strong factory airflow can be used properly. They are commonly used in naturally aspirated, cammed, turbo and supercharged LS builds where a high-flowing OEM GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 823 cylinder head is intended for GM LS rectangular port applications. It is commonly associated with LS3, L92 and similar Gen IV LS engines.\u003c\/p\u003e\n\n\u003cp\u003eRectangular port LS heads use matching rectangular port intake manifolds and the correct LS3\/L92-style rocker arm setup. They are not a direct match for cathedral port intake manifolds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads are generally best suited for engines with a 4.00 inch bore or larger. Always compare the casting number, port shape, combustion chamber style, valve size, intake manifold style and rocker arm setup with your original engine before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 823 rectangular port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS3, L92, L99, L76, L77, LY6, L96, L94, L9H and similar LS engines\u003c\/li\u003e\n\u003cli\u003e6.0L and 6.2L LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eNaturally aspirated, turbo and supercharged LS combinations\u003c\/li\u003e\n\u003cli\u003eCammed street engines and high airflow LS builds\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 823\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS rectangular port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Gen IV LS-based engines with rectangular port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS3, L92, L99, L76, L77, LY6, L96, L94, L9H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 257-280cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 87-93cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.165 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.590 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort style:\u003c\/strong\u003e Rectangular intake port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e75 cfm\u003c\/td\u003e\n\u003ctd\u003e50 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e233 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e277 cfm\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e317 cfm\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e326 cfm\u003c\/td\u003e\n\u003ctd\u003e202 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.700\"\u003c\/td\u003e\n\u003ctd\u003e324 cfm\u003c\/td\u003e\n\u003ctd\u003e206 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 823 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096796447069,"sku":"BEG823-034","price":2400.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/4DC36C6B-AEC0-44E3-9360-F758B185A951.jpg?v=1769359478"},{"product_id":"beg823-035","title":"Used 823 Cylinder Head #035","description":"\u003cdiv class=\"product-description used-ls-823-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 823 Cylinder Head, Rectangular Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 823 cylinder head\u003c\/strong\u003e. The 823 casting is a rectangular port LS cylinder head commonly found on later Gen IV 6.0L and 6.2L LS-based engines, including applications such as \u003cstrong\u003eLS3, L92, L99, L76, L77, LY6, L96, L94\u003c\/strong\u003e and \u003cstrong\u003eL9H\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e823 heads are one of the most popular factory rectangular port LS heads. They offer significantly better airflow than earlier cathedral port truck heads such as 706, 862, 241 and 317, making them a strong option for performance LS builds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads work especially well on 6.0L and 6.2L LS combinations where the larger rectangular intake port, larger valves and strong factory airflow can be used properly. They are commonly used in naturally aspirated, cammed, turbo and supercharged LS builds where a high-flowing OEM GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 823 cylinder head is intended for GM LS rectangular port applications. It is commonly associated with LS3, L92 and similar Gen IV LS engines.\u003c\/p\u003e\n\n\u003cp\u003eRectangular port LS heads use matching rectangular port intake manifolds and the correct LS3\/L92-style rocker arm setup. They are not a direct match for cathedral port intake manifolds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads are generally best suited for engines with a 4.00 inch bore or larger. Always compare the casting number, port shape, combustion chamber style, valve size, intake manifold style and rocker arm setup with your original engine before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 823 rectangular port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS3, L92, L99, L76, L77, LY6, L96, L94, L9H and similar LS engines\u003c\/li\u003e\n\u003cli\u003e6.0L and 6.2L LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eNaturally aspirated, turbo and supercharged LS combinations\u003c\/li\u003e\n\u003cli\u003eCammed street engines and high airflow LS builds\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 823\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS rectangular port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Gen IV LS-based engines with rectangular port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS3, L92, L99, L76, L77, LY6, L96, L94, L9H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 257-280cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 87-93cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.165 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.590 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort style:\u003c\/strong\u003e Rectangular intake port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e75 cfm\u003c\/td\u003e\n\u003ctd\u003e50 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e233 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e277 cfm\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e317 cfm\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e326 cfm\u003c\/td\u003e\n\u003ctd\u003e202 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.700\"\u003c\/td\u003e\n\u003ctd\u003e324 cfm\u003c\/td\u003e\n\u003ctd\u003e206 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 823 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096797528413,"sku":"BEG823-035","price":2600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/37E98682-DA19-4C0A-8A8B-CF265763EBE4.jpg?v=1769359392"},{"product_id":"beg862-036","title":"Used 862 Cylinder Head #036","description":"\u003cdiv class=\"product-description used-ls-862-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 862 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 862 cylinder head\u003c\/strong\u003e. The 862 casting is a cathedral port LS cylinder head commonly found on 4.8L and 5.3L GM LS-based engines, including applications such as \u003cstrong\u003eLM7, L59, LM4\u003c\/strong\u003e and \u003cstrong\u003eLR4\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e862 heads are popular for stock replacement, budget LS builds and small-bore LS applications where the smaller combustion chamber helps maintain or increase compression. They are often used in LS combinations where a simple, affordable factory cylinder head is preferred over more expensive aftermarket options.\u003c\/p\u003e\n\n\u003cp\u003eBecause of the smaller combustion chamber, 862 heads are also commonly used in budget performance builds where increasing compression is part of the engine combination. This makes them a popular choice for cost-conscious LS builds, including some high power turbo or supercharged setups when combined with the right short block, camshaft, fuel system and tuning.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 862 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 4.8L and 5.3L LS engines such as LM7, L59, LM4 and LR4.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 862 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e4.8L and 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003eLM7, L59, LM4, LR4 and similar LS engine applications\u003c\/li\u003e\n\u003cli\u003eStock replacement and repair work\u003c\/li\u003e\n\u003cli\u003eBudget LS engine builds and rebuilds\u003c\/li\u003e\n\u003cli\u003eLS combinations where a smaller combustion chamber is used to help increase compression\u003c\/li\u003e\n\u003cli\u003eSmall-bore LS applications where 862-style heads are required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 862\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 4.8L \/ 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LM7, L59, LM4, LR4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 61cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 1.89 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e63 cfm\u003c\/td\u003e\n\u003ctd\u003e54 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e128 cfm\u003c\/td\u003e\n\u003ctd\u003e93 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003ctd\u003e121 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e210 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e218 cfm\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e221 cfm\u003c\/td\u003e\n\u003ctd\u003e168 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e226 cfm\u003c\/td\u003e\n\u003ctd\u003e174 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 862 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096798347613,"sku":"BEG862-036","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/B73AF343-6704-42F4-AAAF-545C85FDC4B0.jpg?v=1768381096"},{"product_id":"beg806-037","title":"Used 806 Cylinder Head #037","description":"\u003cdiv class=\"product-description used-ls-806-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 806 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 806 cylinder head\u003c\/strong\u003e. The 806 casting is an early cathedral port LS cylinder head commonly associated with \u003cstrong\u003eLS1\u003c\/strong\u003e and early Gen III LS-based engines.\u003c\/p\u003e\n\n\u003cp\u003e806 heads are a factory LS cathedral port head often used for stock replacement, repair work and early LS1-style builds. They are not as sought after as later 243 or 799 heads, but they are still a useful OEM GM casting for many LS applications where the early head design is required.\u003c\/p\u003e\n\n\u003cp\u003eOne important difference with 806 heads is the \u003cstrong\u003eearly perimeter bolt valve cover design\u003c\/strong\u003e. These heads do not use the later center bolt LS valve covers, so make sure you have the correct valve covers, coil bracket setup and related parts for this style of cylinder head.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 806 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with early LS1-style Gen III LS engines, but may also be used in other LS-based combinations where the chamber size, valve size, valve cover style and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size, valve cover bolt pattern and cylinder head bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 806 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eEarly LS1-style Gen III LS-based engines\u003c\/li\u003e\n\u003cli\u003e5.7L LS1-style stock replacement and rebuilds\u003c\/li\u003e\n\u003cli\u003eBudget LS engine repairs and mild performance builds\u003c\/li\u003e\n\u003cli\u003eApplications using early perimeter bolt LS valve covers\u003c\/li\u003e\n\u003cli\u003eLS combinations where a factory cathedral port head is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 806\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM LS-based engines with cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e Early LS1-style Gen III LS engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve cover style:\u003c\/strong\u003e Early perimeter bolt valve covers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 67cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e67 cfm\u003c\/td\u003e\n\u003ctd\u003e52 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e122 cfm\u003c\/td\u003e\n\u003ctd\u003e97 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e178 cfm\u003c\/td\u003e\n\u003ctd\u003e133 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e215 cfm\u003c\/td\u003e\n\u003ctd\u003e156 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e219 cfm\u003c\/td\u003e\n\u003ctd\u003e170 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e223 cfm\u003c\/td\u003e\n\u003ctd\u003e176 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e227 cfm\u003c\/td\u003e\n\u003ctd\u003e180 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 806 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096800248157,"sku":"BEG806-037","price":2000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/7F8142E5-8744-4BB9-B33E-D78E39A530CE.jpg?v=1768381447"},{"product_id":"beg799-038","title":"Used 799 Cylinder Head #038","description":"\u003cdiv class=\"product-description used-ls-799-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 799 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 799 cylinder head\u003c\/strong\u003e. The 799 casting is a cathedral port LS cylinder head commonly found on later 5.3L GM LS-based engines and is often considered very similar in performance to the well-known 243 casting.\u003c\/p\u003e\n\n\u003cp\u003e799 heads are one of the more desirable factory cathedral port LS heads. They offer strong factory airflow compared to earlier 4.8L \/ 5.3L truck heads such as 706 and 862, while still using the factory cathedral port layout.\u003c\/p\u003e\n\n\u003cp\u003eWith an efficient combustion chamber and good OEM airflow, 799 heads are a popular choice for naturally aspirated LS builds, cammed street engines, mild boost combinations and performance upgrades where a factory GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 799 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with later 5.3L LS engines and may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 799 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLater 5.3L LS-based engines using 799-style heads\u003c\/li\u003e\n\u003cli\u003e5.3L, 5.7L, 6.0L and compatible LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eCammed street engines and naturally aspirated LS builds\u003c\/li\u003e\n\u003cli\u003eMild turbo or supercharged LS combinations where this chamber and port style is suitable\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 799\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM LS-based engines with cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e Later 5.3L LS engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 64.5cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e62 cfm\u003c\/td\u003e\n\u003ctd\u003e57 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e126 cfm\u003c\/td\u003e\n\u003ctd\u003e108 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e184 cfm\u003c\/td\u003e\n\u003ctd\u003e143 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e224 cfm\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e251 cfm\u003c\/td\u003e\n\u003ctd\u003e176 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e256 cfm\u003c\/td\u003e\n\u003ctd\u003e180 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e257 cfm\u003c\/td\u003e\n\u003ctd\u003e183 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 799 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096801886557,"sku":"BEG799-038","price":2000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/C9246AF6-C00A-49A8-965B-95976193CBBA.jpg?v=1768381770"},{"product_id":"beg5364-040","title":"Used 5364 Cylinder Head #040","description":"\u003cdiv class=\"product-description used-ls-5364-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 5364 Cylinder Head, Rectangular Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 5364 cylinder head\u003c\/strong\u003e. The 5364 casting is a rectangular port LS cylinder head commonly associated with later Gen IV 6.0L and 6.2L LS-based engines, including applications such as \u003cstrong\u003eLS3, L92, L99, L76, L77, LY6, L96, L94\u003c\/strong\u003e and \u003cstrong\u003eL9H\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e5364 heads are part of the same general rectangular port family as the well-known 821 and 823 castings. They offer strong factory airflow compared to earlier cathedral port heads such as 706, 862, 241 and 317, making them a popular option for performance LS builds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads work especially well on 6.0L and 6.2L LS combinations where the larger rectangular intake port, larger valves and strong factory airflow can be used properly. They are commonly used in naturally aspirated, cammed, turbo and supercharged LS builds where a high-flowing OEM GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 5364 cylinder head is intended for GM LS rectangular port applications. It is commonly associated with LS3, L92 and similar Gen IV LS engines.\u003c\/p\u003e\n\n\u003cp\u003eRectangular port LS heads use matching rectangular port intake manifolds and the correct LS3\/L92-style rocker arm setup. They are not a direct match for cathedral port intake manifolds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads are generally best suited for engines with a 4.00 inch bore or larger. Always compare the casting number, port shape, combustion chamber style, valve size, intake manifold style and rocker arm setup with your original engine before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 5364 rectangular port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS3, L92, L99, L76, L77, LY6, L96, L94, L9H and similar LS engines\u003c\/li\u003e\n\u003cli\u003e6.0L and 6.2L LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eNaturally aspirated, turbo and supercharged LS combinations\u003c\/li\u003e\n\u003cli\u003eCammed street engines and high airflow LS builds\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 5364\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS rectangular port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Gen IV LS-based engines with rectangular port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS3, L92, L99, L76, L77, LY6, L96, L94, L9H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 257-280cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 87-93cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.165 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.590 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort style:\u003c\/strong\u003e Rectangular intake port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e75 cfm\u003c\/td\u003e\n\u003ctd\u003e50 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e233 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e277 cfm\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e317 cfm\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e326 cfm\u003c\/td\u003e\n\u003ctd\u003e202 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.700\"\u003c\/td\u003e\n\u003ctd\u003e324 cfm\u003c\/td\u003e\n\u003ctd\u003e206 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 5364 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63096803492189,"sku":"BEG5364-040","price":3600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/DFE370CA-A98C-46C9-BBDF-C058FDDF033E.jpg?v=1768382412"},{"product_id":"used-214-cylinder-head-041","title":"Used 214 Cylinder Head #041","description":"\u003cp\u003eSee pictures for condition\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63102733648221,"sku":"BEG214-041","price":2000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/44799FAA-67E0-4805-A9E4-04EAF12D023C.jpg?v=1768385366"},{"product_id":"used-873-cylinder-head-043","title":"Used 873 Cylinder Head #043","description":"\u003cp\u003eSee pictures for condition\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63102938186077,"sku":"BEG873-043","price":2000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/492E9681-3E94-4A80-B8F6-1C6C10908047.jpg?v=1776432251"},{"product_id":"beg823-044","title":"Used 823 Cylinder Head #044","description":"\u003cdiv class=\"product-description used-ls-823-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 823 Cylinder Head, Rectangular Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 823 cylinder head\u003c\/strong\u003e. The 823 casting is a rectangular port LS cylinder head commonly found on later Gen IV 6.0L and 6.2L LS-based engines, including applications such as \u003cstrong\u003eLS3, L92, L99, L76, L77, LY6, L96, L94\u003c\/strong\u003e and \u003cstrong\u003eL9H\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e823 heads are one of the most popular factory rectangular port LS heads. They offer significantly better airflow than earlier cathedral port truck heads such as 706, 862, 241 and 317, making them a strong option for performance LS builds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads work especially well on 6.0L and 6.2L LS combinations where the larger rectangular intake port, larger valves and strong factory airflow can be used properly. They are commonly used in naturally aspirated, cammed, turbo and supercharged LS builds where a high-flowing OEM GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 823 cylinder head is intended for GM LS rectangular port applications. It is commonly associated with LS3, L92 and similar Gen IV LS engines.\u003c\/p\u003e\n\n\u003cp\u003eRectangular port LS heads use matching rectangular port intake manifolds and the correct LS3\/L92-style rocker arm setup. They are not a direct match for cathedral port intake manifolds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads are generally best suited for engines with a 4.00 inch bore or larger. Always compare the casting number, port shape, combustion chamber style, valve size, intake manifold style and rocker arm setup with your original engine before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 823 rectangular port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS3, L92, L99, L76, L77, LY6, L96, L94, L9H and similar LS engines\u003c\/li\u003e\n\u003cli\u003e6.0L and 6.2L LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eNaturally aspirated, turbo and supercharged LS combinations\u003c\/li\u003e\n\u003cli\u003eCammed street engines and high airflow LS builds\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 823\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS rectangular port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Gen IV LS-based engines with rectangular port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS3, L92, L99, L76, L77, LY6, L96, L94, L9H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 257-280cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 87-93cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.165 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.590 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort style:\u003c\/strong\u003e Rectangular intake port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e75 cfm\u003c\/td\u003e\n\u003ctd\u003e50 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e233 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e277 cfm\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e317 cfm\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e326 cfm\u003c\/td\u003e\n\u003ctd\u003e202 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.700\"\u003c\/td\u003e\n\u003ctd\u003e324 cfm\u003c\/td\u003e\n\u003ctd\u003e206 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 823 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63102985306461,"sku":"BEG823-044","price":2400.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/187A8005-4AFF-4F31-B6E0-94BF9C201726.jpg?v=1769359142"},{"product_id":"beg317-045","title":"Used 317 Cylinder Head #045","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63103015977309,"sku":"BEG317-045","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/DC28D377-D883-4AD6-A028-7C5F2B714F29.jpg?v=1768387682"},{"product_id":"beg317-046","title":"Used 317 Cylinder Head #046","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63103060148573,"sku":"BEG317-046","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/88E106E8-6285-4911-80AA-3155A028B8C0.jpg?v=1768388094"},{"product_id":"beg862-047","title":"Used 862 Cylinder Head #047","description":"\u003cdiv class=\"product-description used-ls-862-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 862 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 862 cylinder head\u003c\/strong\u003e. The 862 casting is a cathedral port LS cylinder head commonly found on 4.8L and 5.3L GM LS-based engines, including applications such as \u003cstrong\u003eLM7, L59, LM4\u003c\/strong\u003e and \u003cstrong\u003eLR4\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e862 heads are popular for stock replacement, budget LS builds and small-bore LS applications where the smaller combustion chamber helps maintain or increase compression. They are often used in LS combinations where a simple, affordable factory cylinder head is preferred over more expensive aftermarket options.\u003c\/p\u003e\n\n\u003cp\u003eBecause of the smaller combustion chamber, 862 heads are also commonly used in budget performance builds where increasing compression is part of the engine combination. This makes them a popular choice for cost-conscious LS builds, including some high power turbo or supercharged setups when combined with the right short block, camshaft, fuel system and tuning.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 862 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 4.8L and 5.3L LS engines such as LM7, L59, LM4 and LR4.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 862 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e4.8L and 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003eLM7, L59, LM4, LR4 and similar LS engine applications\u003c\/li\u003e\n\u003cli\u003eStock replacement and repair work\u003c\/li\u003e\n\u003cli\u003eBudget LS engine builds and rebuilds\u003c\/li\u003e\n\u003cli\u003eLS combinations where a smaller combustion chamber is used to help increase compression\u003c\/li\u003e\n\u003cli\u003eSmall-bore LS applications where 862-style heads are required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 862\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 4.8L \/ 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LM7, L59, LM4, LR4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 61cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 1.89 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e63 cfm\u003c\/td\u003e\n\u003ctd\u003e54 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e128 cfm\u003c\/td\u003e\n\u003ctd\u003e93 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003ctd\u003e121 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e210 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e218 cfm\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e221 cfm\u003c\/td\u003e\n\u003ctd\u003e168 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e226 cfm\u003c\/td\u003e\n\u003ctd\u003e174 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 862 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63103072502109,"sku":"BEG862-047","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/FF5D6454-D4F8-41B9-9214-FAC6B1088692.jpg?v=1768393307"},{"product_id":"used-214-cylinder-head-template","title":"Used 214 Cylinder Head #048","description":"\u003cp\u003eSee pictures for condition\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63103075058013,"sku":"BEG214-048","price":2000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/524EA9B4-1099-45A8-8692-44D40B780A14.jpg?v=1768393519"},{"product_id":"beg823-049","title":"Used 823 Cylinder Head #049","description":"\u003cdiv class=\"product-description used-ls-823-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 823 Cylinder Head, Rectangular Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 823 cylinder head\u003c\/strong\u003e. The 823 casting is a rectangular port LS cylinder head commonly found on later Gen IV 6.0L and 6.2L LS-based engines, including applications such as \u003cstrong\u003eLS3, L92, L99, L76, L77, LY6, L96, L94\u003c\/strong\u003e and \u003cstrong\u003eL9H\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e823 heads are one of the most popular factory rectangular port LS heads. They offer significantly better airflow than earlier cathedral port truck heads such as 706, 862, 241 and 317, making them a strong option for performance LS builds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads work especially well on 6.0L and 6.2L LS combinations where the larger rectangular intake port, larger valves and strong factory airflow can be used properly. They are commonly used in naturally aspirated, cammed, turbo and supercharged LS builds where a high-flowing OEM GM casting is preferred over aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 823 cylinder head is intended for GM LS rectangular port applications. It is commonly associated with LS3, L92 and similar Gen IV LS engines.\u003c\/p\u003e\n\n\u003cp\u003eRectangular port LS heads use matching rectangular port intake manifolds and the correct LS3\/L92-style rocker arm setup. They are not a direct match for cathedral port intake manifolds.\u003c\/p\u003e\n\n\u003cp\u003eThese heads are generally best suited for engines with a 4.00 inch bore or larger. Always compare the casting number, port shape, combustion chamber style, valve size, intake manifold style and rocker arm setup with your original engine before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 823 rectangular port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS3, L92, L99, L76, L77, LY6, L96, L94, L9H and similar LS engines\u003c\/li\u003e\n\u003cli\u003e6.0L and 6.2L LS-based performance builds\u003c\/li\u003e\n\u003cli\u003eNaturally aspirated, turbo and supercharged LS combinations\u003c\/li\u003e\n\u003cli\u003eCammed street engines and high airflow LS builds\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and performance LS upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 823\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS rectangular port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Gen IV LS-based engines with rectangular port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS3, L92, L99, L76, L77, LY6, L96, L94, L9H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 257-280cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 87-93cc depending on source and casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.165 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.590 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort style:\u003c\/strong\u003e Rectangular intake port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e75 cfm\u003c\/td\u003e\n\u003ctd\u003e50 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e233 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e277 cfm\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e317 cfm\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e326 cfm\u003c\/td\u003e\n\u003ctd\u003e202 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.700\"\u003c\/td\u003e\n\u003ctd\u003e324 cfm\u003c\/td\u003e\n\u003ctd\u003e206 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 823 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63103077843293,"sku":"BEG823-049","price":3200.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/9F74D1A7-772C-44B9-B2B3-BA1BDC827597.jpg?v=1768393695"},{"product_id":"used-241-cylinder-head-0050","title":"Used 241 Cylinder Head #050","description":"\u003cdiv class=\"product-description used-ls-241-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 241 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 241 cylinder head\u003c\/strong\u003e. The 241 casting is a cathedral port LS cylinder head commonly found on \u003cstrong\u003eLS1\u003c\/strong\u003e and other early Gen III LS-based engines.\u003c\/p\u003e\n\n\u003cp\u003e241 heads are a common factory LS cathedral port head and are often used for stock replacement, repair work and budget LS builds. They are not as sought after as later 243 or 799 heads, but they are still a useful OEM GM casting for many LS applications.\u003c\/p\u003e\n\n\u003cp\u003eWith a larger combustion chamber than 706\/862 heads, 241 heads can be useful in combinations where a slightly lower compression ratio is preferred. They can be a good option for basic 5.7L LS1-style builds, stock rebuilds or mild performance engines where an affordable factory cylinder head is required.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 241 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with LS1 and early Gen III LS engines, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 241 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS1 and early Gen III LS-based engines\u003c\/li\u003e\n\u003cli\u003e5.7L LS1-style stock replacement and rebuilds\u003c\/li\u003e\n\u003cli\u003eBudget LS engine repairs and mild performance builds\u003c\/li\u003e\n\u003cli\u003eLS combinations where a factory cathedral port head is required\u003c\/li\u003e\n\u003cli\u003eApplications where a slightly larger chamber than 706\/862 is preferred\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 241\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM LS-based engines with cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS1 and early Gen III LS engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 67cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e67 cfm\u003c\/td\u003e\n\u003ctd\u003e51 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e139 cfm\u003c\/td\u003e\n\u003ctd\u003e96 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003ctd\u003e126 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e219 cfm\u003c\/td\u003e\n\u003ctd\u003e146 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e226 cfm\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e169 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e172 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 241 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63104075366749,"sku":"BEG241-050","price":2000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/1164D68D-46E9-4E09-BD23-7FBC5B672F62.jpg?v=1768394392"},{"product_id":"beg806-052","title":"Used 806 Cylinder Head #052","description":"\u003cdiv class=\"product-description used-ls-806-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 806 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 806 cylinder head\u003c\/strong\u003e. The 806 casting is an early cathedral port LS cylinder head commonly associated with \u003cstrong\u003eLS1\u003c\/strong\u003e and early Gen III LS-based engines.\u003c\/p\u003e\n\n\u003cp\u003e806 heads are a factory LS cathedral port head often used for stock replacement, repair work and early LS1-style builds. They are not as sought after as later 243 or 799 heads, but they are still a useful OEM GM casting for many LS applications where the early head design is required.\u003c\/p\u003e\n\n\u003cp\u003eOne important difference with 806 heads is the \u003cstrong\u003eearly perimeter bolt valve cover design\u003c\/strong\u003e. These heads do not use the later center bolt LS valve covers, so make sure you have the correct valve covers, coil bracket setup and related parts for this style of cylinder head.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 806 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with early LS1-style Gen III LS engines, but may also be used in other LS-based combinations where the chamber size, valve size, valve cover style and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size, valve cover bolt pattern and cylinder head bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 806 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eEarly LS1-style Gen III LS-based engines\u003c\/li\u003e\n\u003cli\u003e5.7L LS1-style stock replacement and rebuilds\u003c\/li\u003e\n\u003cli\u003eBudget LS engine repairs and mild performance builds\u003c\/li\u003e\n\u003cli\u003eApplications using early perimeter bolt LS valve covers\u003c\/li\u003e\n\u003cli\u003eLS combinations where a factory cathedral port head is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 806\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM LS-based engines with cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e Early LS1-style Gen III LS engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve cover style:\u003c\/strong\u003e Early perimeter bolt valve covers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 67cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e67 cfm\u003c\/td\u003e\n\u003ctd\u003e52 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e122 cfm\u003c\/td\u003e\n\u003ctd\u003e97 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e178 cfm\u003c\/td\u003e\n\u003ctd\u003e133 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e215 cfm\u003c\/td\u003e\n\u003ctd\u003e156 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e219 cfm\u003c\/td\u003e\n\u003ctd\u003e170 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e223 cfm\u003c\/td\u003e\n\u003ctd\u003e176 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e227 cfm\u003c\/td\u003e\n\u003ctd\u003e180 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 806 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63104076480861,"sku":"BEG806-052","price":2000.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/7C09A843-7FC9-4013-A780-169EE16EB54F.jpg?v=1768394797"},{"product_id":"beg317-054","title":"Used 317 Cylinder Head #054","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63104078545245,"sku":"BEG317-054","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/2CC708D8-555A-47AE-BC3D-C4B1BC1F69F3.jpg?v=1768395141"},{"product_id":"used-364-cylinder-head-055","title":"Used 364 Cylinder Head #055","description":"\u003cp\u003eSee pictures for condition\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63104081789277,"sku":"BEG364-055","price":3600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/06FB5A6D-97D9-4DD2-B59C-7128A2DB7DA3.jpg?v=1768395307"},{"product_id":"beg317-056","title":"Used 317 Cylinder Head #056","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63104087523677,"sku":"BEG317-056","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/12FF9DE2-A642-47CB-A6CE-C666248E3D40.jpg?v=1768395476"},{"product_id":"used-214-cylinder-head-057","title":"Used 241 Cylinder Head #057","description":"\u003cdiv class=\"product-description used-ls-241-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 241 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 241 cylinder head\u003c\/strong\u003e. The 241 casting is a cathedral port LS cylinder head commonly found on \u003cstrong\u003eLS1\u003c\/strong\u003e and other early Gen III LS-based engines.\u003c\/p\u003e\n\n\u003cp\u003e241 heads are a common factory LS cathedral port head and are often used for stock replacement, repair work and budget LS builds. They are not as sought after as later 243 or 799 heads, but they are still a useful OEM GM casting for many LS applications.\u003c\/p\u003e\n\n\u003cp\u003eWith a larger combustion chamber than 706\/862 heads, 241 heads can be useful in combinations where a slightly lower compression ratio is preferred. They can be a good option for basic 5.7L LS1-style builds, stock rebuilds or mild performance engines where an affordable factory cylinder head is required.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 241 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with LS1 and early Gen III LS engines, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 241 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003eLS1 and early Gen III LS-based engines\u003c\/li\u003e\n\u003cli\u003e5.7L LS1-style stock replacement and rebuilds\u003c\/li\u003e\n\u003cli\u003eBudget LS engine repairs and mild performance builds\u003c\/li\u003e\n\u003cli\u003eLS combinations where a factory cathedral port head is required\u003c\/li\u003e\n\u003cli\u003eApplications where a slightly larger chamber than 706\/862 is preferred\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 241\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM LS-based engines with cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine applications:\u003c\/strong\u003e LS1 and early Gen III LS engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 67cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e67 cfm\u003c\/td\u003e\n\u003ctd\u003e51 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e139 cfm\u003c\/td\u003e\n\u003ctd\u003e96 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e190 cfm\u003c\/td\u003e\n\u003ctd\u003e126 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e219 cfm\u003c\/td\u003e\n\u003ctd\u003e146 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e226 cfm\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e169 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e172 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 241 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63104153813341,"sku":"BEG241-057","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/3BA4D2F7-A9A5-480F-A813-CC354442F4D5.jpg?v=1768396228"},{"product_id":"beg862-060","title":"Used 862 Cylinder Head #060","description":"\u003cdiv class=\"product-description used-ls-862-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 862 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 862 cylinder head\u003c\/strong\u003e. The 862 casting is a cathedral port LS cylinder head commonly found on 4.8L and 5.3L GM LS-based engines, including applications such as \u003cstrong\u003eLM7, L59, LM4\u003c\/strong\u003e and \u003cstrong\u003eLR4\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e862 heads are popular for stock replacement, budget LS builds and small-bore LS applications where the smaller combustion chamber helps maintain or increase compression. They are often used in LS combinations where a simple, affordable factory cylinder head is preferred over more expensive aftermarket options.\u003c\/p\u003e\n\n\u003cp\u003eBecause of the smaller combustion chamber, 862 heads are also commonly used in budget performance builds where increasing compression is part of the engine combination. This makes them a popular choice for cost-conscious LS builds, including some high power turbo or supercharged setups when combined with the right short block, camshaft, fuel system and tuning.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 862 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 4.8L and 5.3L LS engines such as LM7, L59, LM4 and LR4.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 862 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e4.8L and 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003eLM7, L59, LM4, LR4 and similar LS engine applications\u003c\/li\u003e\n\u003cli\u003eStock replacement and repair work\u003c\/li\u003e\n\u003cli\u003eBudget LS engine builds and rebuilds\u003c\/li\u003e\n\u003cli\u003eLS combinations where a smaller combustion chamber is used to help increase compression\u003c\/li\u003e\n\u003cli\u003eSmall-bore LS applications where 862-style heads are required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 862\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 4.8L \/ 5.3L LS-based engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LM7, L59, LM4, LR4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 61cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 200cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 70cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 1.89 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e63 cfm\u003c\/td\u003e\n\u003ctd\u003e54 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e128 cfm\u003c\/td\u003e\n\u003ctd\u003e93 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e179 cfm\u003c\/td\u003e\n\u003ctd\u003e121 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e210 cfm\u003c\/td\u003e\n\u003ctd\u003e145 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e218 cfm\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e221 cfm\u003c\/td\u003e\n\u003ctd\u003e168 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e226 cfm\u003c\/td\u003e\n\u003ctd\u003e174 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 862 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63104176161117,"sku":"BEG862-060","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/CAC7CF18-6C11-4702-8613-4818A71461AA.jpg?v=1768396600"},{"product_id":"beg317-061","title":"Used 317 Cylinder Head #061","description":"\u003cdiv class=\"product-description used-ls-317-cylinder-head\"\u003e\n\u003ch2\u003eUsed GM LS 317 Cylinder Head, Cathedral Port\u003c\/h2\u003e\n\n\u003cp\u003eThis is a used OEM-style \u003cstrong\u003eGM LS 317 cylinder head\u003c\/strong\u003e. The 317 casting is an aluminum cathedral port LS cylinder head commonly found on 6.0L GM LS-based engines, including applications such as \u003cstrong\u003eLQ4\u003c\/strong\u003e and \u003cstrong\u003eLQ9\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e317 heads are known for their larger combustion chambers compared to smaller 4.8L and 5.3L LS truck heads such as 706 and 862. While this makes them less popular for some naturally aspirated budget builds, the larger chamber can be useful in the right engine combination.\u003c\/p\u003e\n\n\u003cp\u003eWe like 317 heads for turbo, supercharged and pump gas LS builds where slightly lower compression can be an advantage. They can be a good match for 5.7L or 6.0L LS builds with flat top pistons, especially when the goal is to make reliable power on regular pump fuel without spending big money on aftermarket cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Condition Information\u003c\/h3\u003e\n\n\u003cp\u003eThis is a used cylinder head and condition may vary between individual units. Some heads may be more complete, while others may be missing valves, springs, retainers, seals, bolts, plugs or other small parts.\u003c\/p\u003e\n\n\u003cp\u003eSome used heads may have cosmetic wear, dirt, oxidation, gasket residue, broken bolts, damaged threads or other defects. Please see the product pictures carefully for actual condition and included parts.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\n\u003cp\u003eThis 317 cylinder head is intended for GM LS cathedral port applications. It is commonly associated with 6.0L LS engines such as LQ4 and LQ9, but may also be used in other LS-based combinations where the chamber size, valve size and cathedral port layout are suitable.\u003c\/p\u003e\n\n\u003cp\u003eAlways compare the casting number, port shape, combustion chamber style, valve size and bolt pattern with your original cylinder head before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGM LS 317 cathedral port cylinder head applications\u003c\/li\u003e\n\u003cli\u003e6.0L LS-based engines such as LQ4 and LQ9\u003c\/li\u003e\n\u003cli\u003e5.7L and 6.0L LS builds using cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003eTurbo and supercharged LS combinations where a larger chamber is preferred\u003c\/li\u003e\n\u003cli\u003eFlat top piston LS builds where compression ratio needs to stay pump gas friendly\u003c\/li\u003e\n\u003cli\u003eStock replacement, repair work and budget performance LS builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e LS cathedral port cylinder head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 6.0L LS-based engines and compatible LS builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon engine codes:\u003c\/strong\u003e LQ4, LQ9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber:\u003c\/strong\u003e Approx. 71cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port volume:\u003c\/strong\u003e Approx. 210cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port volume:\u003c\/strong\u003e Approx. 75cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake valve size:\u003c\/strong\u003e 2.00 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve size:\u003c\/strong\u003e 1.55 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold each\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Stock Flow Numbers\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Lift\u003c\/th\u003e\n\u003cth\u003eIntake Flow\u003c\/th\u003e\n\u003cth\u003eExhaust Flow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e.100\"\u003c\/td\u003e\n\u003ctd\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e59 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd\u003e142 cfm\u003c\/td\u003e\n\u003ctd\u003e104 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd\u003e196 cfm\u003c\/td\u003e\n\u003ctd\u003e137 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003ctd\u003e155 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd\u003e236 cfm\u003c\/td\u003e\n\u003ctd\u003e167 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.550\"\u003c\/td\u003e\n\u003ctd\u003e238 cfm\u003c\/td\u003e\n\u003ctd\u003e173 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd\u003e240 cfm\u003c\/td\u003e\n\u003ctd\u003e177 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is a used internal engine component and may show normal signs of previous use. The cylinder head is sold as pictured, so please review all images to confirm condition, completeness and any visible defects before ordering.\u003c\/p\u003e\n\n\u003cp\u003eIf you are unsure whether this 317 cylinder head is correct for your engine, compare it with your original part before ordering or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BEG","offers":[{"title":"Default Title","offer_id":63104176816477,"sku":"BEG317-061","price":1600.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/files\/86F6693A-3A5B-4347-8544-79403FE5FA16.jpg?v=1768396780"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/1381\/2573\/collections\/br_5_exhaust.jpg?v=1763633997","url":"https:\/\/www.blencospeedshop.com\/collections\/cylinder-heads.oembed?page=72","provider":"Blenco Speedshop","version":"1.0","type":"link"}