{"product_id":"edelbrock-77621-edelbrock-77621-e-street-assembled-cylinder-heads-for-gm-ls-series-pair","title":"EDELBROCK 77621 Edelbrock 77621 E-Street Assembled Cylinder Heads for GM LS-Series, Pair","description":"\u003cp\u003eEdelbrock E-Street assembled cylinder heads are designed for GM LS-Series applications and supplied as a matched pair. Part number 77621 features aluminum construction, making these cylinder heads a practical choice for performance engine builds requiring assembled components.\u003c\/p\u003e\n\u003cp\u003eEach cylinder head is configured with 2.165-inch intake valves and 1.590-inch exhaust valves. The design incorporates a 260 cc intake port and a 69 cc combustion chamber, providing key specifications for selecting and planning an LS-Series engine combination.\u003c\/p\u003e\n\u003cp\u003eThe assemblies include valve springs measuring 1.282 inches and 1.077 inches. With the valves, springs, and related components assembled, the pair is intended to support streamlined cylinder head installation compared with sourcing and assembling individual components separately.\u003c\/p\u003e\n\u003cp\u003eVerify engine application requirements and build specifications before ordering to ensure the valve, port, chamber, and spring configurations meet your project needs.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: Edelbrock\u003c\/li\u003e\n\u003cli\u003ePart Number: 77621\u003c\/li\u003e\n\u003cli\u003eApplication: GM LS-Series engines\u003c\/li\u003e\n\u003cli\u003eProduct Type: E-Street assembled cylinder head pair\u003c\/li\u003e\n\u003cli\u003eConstruction: Aluminum\u003c\/li\u003e\n\u003cli\u003eIntake Valve Diameter: 2.165 inches\u003c\/li\u003e\n\u003cli\u003eExhaust Valve Diameter: 1.590 inches\u003c\/li\u003e\n\u003cli\u003eIntake Port Volume: 260 cc\u003c\/li\u003e\n\u003cli\u003eCombustion Chamber Volume: 69 cc\u003c\/li\u003e\n\u003cli\u003eSpring Dimensions: 1.282 inches and 1.077 inches\u003c\/li\u003e\n\u003cli\u003eQuantity: Pair\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EDELBROCK","offers":[{"title":"Default Title","offer_id":49272660984030,"sku":"EDE77621","price":2630.69,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/7690\/8766\/files\/EDE77621.jpg?v=1792788595","url":"https:\/\/www.racingsupply.ca\/products\/edelbrock-77621-edelbrock-77621-e-street-assembled-cylinder-heads-for-gm-ls-series-pair","provider":"Racing Supply Co.","version":"1.0","type":"link"}