{"product_id":"edl-5073","title":"1 PR. SMALL-BLOCK CHEVY E-STREET CYLINDER HEAD 70CC PAIR","description":"\u003cp\u003e\u003cstrong\u003eBrand New Edelbrock E-Street Cylinder Head 70cc Pair Fits 1955-1986 Small Block Chevy Engines (Part #5073).\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Edelbrock E-Street cylinder heads are designed for use with 1955-1986 Small-Block Chevy applications. The Edelbrock E-Street cylinder heads offer American made quality and affordable performance. E-Street cylinder heads feature as-cast ports and are designed for entry-level street performance applications operating in the idle-to-5500 rpm range. The modern combustion chamber designs improve the combustion process and larger than stock intake and exhaust ports move more air through your engine for improve efficiency. For use on pre-pollution controlled vehicles only.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eInstallation Notes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for use with hydraulic flat tappet camshafts only, not compatible with hydraulic roller camshafts\u003c\/li\u003e\n\u003cli\u003eUse with Hydraulic Flat Tappet Camshafts .550\" max lift. (NOT Compatible with Hydraulic Roller Camshafts)\u003c\/li\u003e\n\u003cli\u003eRecommended spark plugs are Champion RC12YC or equivalent 14mm x 3\/4\" reach with flat gasket seat.\u003c\/li\u003e\n\u003cli\u003eRequires hardened pushrods.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDyno tests showed a gain of 16 hp and 11 ft-lbs of torque over our overseas competitor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e E-Street\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 300-400 HP\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat Angle:\u003c\/strong\u003e Exhaust 45 deg\/Intake 45 deg\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Valve Diameter:\u003c\/strong\u003e 2.02 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Runner Volume:\u003c\/strong\u003e 185 cc\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePush Rod Diameter:\u003c\/strong\u003e 0.3125 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Angle:\u003c\/strong\u003e 23 Degree\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Spring Diameter:\u003c\/strong\u003e 1.46 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Spring Maximum Lift:\u003c\/strong\u003e 0.550 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Stem Diameter:\u003c\/strong\u003e 0.3438 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYou can view and download the complete assembly instruction booklet \u003ca href=\"https:\/\/southwestspeed.com\/cdn\/shop\/files\/EDL_5073Instructions.pdf\" style=\"color: red;\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e","brand":"EDL 5073","offers":[{"title":"Default Title","offer_id":50395484094745,"sku":"EDL 5073","price":1332.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/0477\/6985\/files\/EDL_5073.jpg?v=1745427382","url":"https:\/\/southwestspeed.com\/products\/edl-5073","provider":"Southwest Speed","version":"1.0","type":"link"}