{"product_id":"edelbrock-gm-ls3-engines-e-street-15-degree-cylinder-heads-w-570in-lift-inconel-valves","title":"Edelbrock GM LS3 Engines E-Street 15-Degree Cylinder Heads w\/ .570in Lift - Inconel Valves","description":"\u003cp\u003e\u003cstrong\u003e⚠ No shipping to California due to CARB regulation.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEdelbrock introduces its new E-Street 15-degree LS3 69cc cylinder heads (PN 77620) as a premium replacement option, ensuring great power on any high-performance or stock GM LS3 engine build. These heads offer the best performance value of any aftermarket GM LS3 head.\n\nSold in pairs and assembled with premium COMP Cams® valve train components, these LS3 heads are engineered with the same architecture as the factory head, and all stock components will fit without issue. The assembled heads feature Beehive™ Valve Springs, chromoly steel retainers, heavy-duty stainless-steel \u0026amp; Inconel valves, and top-quality valve seals – all inspected and assembled by qualified Edelbrock technicians. The intake valve size is 2.165” while the exhaust is 1.590”. The Beehive Valve Springs allow up to .570” lift camshafts, ideal for many mild to hot camshaft grinds.\n\nEdelbrock E-Street 15-degree LS3 cylinder heads are manufactured with premium aluminum alloy, machined to the industry’s tightest tolerances. They feature manganese bronze valve guides for extended wear, with particular emphasis placed on holding precision tolerances on valve seat concentricity. This allows the valves to seal securely, eliminating any leak-down and increasing cylinder pressures during engine operation.\n\nAll Edelbrock cylinder heads feature patented Clean Cast Technology™, a revolutionary process that eliminates casting flaws and promotes a smoother internal surface finish for greater air and coolant flow. These benefits provide more power and increased cooling ability right out of the box. A unique dual spark-plug-pocket design allows you to use the factory-style tapered-seat spark plugs or gasket-seat spark plugs available in wider heat ranges for maximum tunability.\u003c\/p\u003e\u003cp\u003eThe E-Street Cylinder Heads for GM LS3 are designed as premium quality, bolt-on-ready cylinder heads for any high-performance or stock replacement application. The chambers are 69cc, while the Beehive springs allow .570” lift camshafts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2.165\" Stainless Intake Valve, 1.59\" Stainless Exhaust Valve\u003c\/li\u003e\n\u003cli\u003eSold in Pairs (2 complete, assembled heads per part number)\u003c\/li\u003e\n\u003cli\u003eReady to bolt on out of the box\u003c\/li\u003e\n\u003cli\u003eGM LS3 Compatible\u003c\/li\u003e\n\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Unknown\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":47684185948311,"sku":"ede77621","price":1702.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0497\/9697\/2695\/files\/d84abc277711a092d257d3757454b61bL.jpg?v=1776394814","url":"https:\/\/nlpperformance.com\/en-ca\/products\/edelbrock-gm-ls3-engines-e-street-15-degree-cylinder-heads-w-570in-lift-inconel-valves","provider":"Next Level Performance","version":"1.0","type":"link"}