{"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","url":"https:\/\/www.blencospeedshop.com\/products\/beg799-012","provider":"Blenco Speedshop","version":"1.0","type":"link"}