{"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","url":"https:\/\/www.blencospeedshop.com\/products\/beg806-052","provider":"Blenco Speedshop","version":"1.0","type":"link"}