{"product_id":"edl-50459","title":"E-STREET BIG-BLOCK CHEVY CYLINDER HEAD OVAL COMPLETE SINGLE","description":"\u003cp\u003e\u003cstrong\u003eBrand New Edelbrock E-Street Complete Single 290 Cylinder Head Fits Big Block Chevy with Oval Ports  (Part #50459).\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Edelbrock E-Street cylinder 290 Oval Port head is designed for Big-Block applications. The Edelbrock E-Street cylinder head offers American made quality and affordable performance. E-Street cylinder head features 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\u003eMatch with Edelbrock head gasket sets.\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\u003eDesigned for entry-level street performance engines and ideal for operating in the idle to 5500 rpm range\u003c\/li\u003e\n\u003cli\u003eIncludes hardened spring cups and Heli-Coil threaded inserts in the rocker stud bosses for increased strength\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThese cylinder heads are sold separately and Made in the USA!\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 400-500 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 2.19 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Runner Volume:\u003c\/strong\u003e 290 cc\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePush Rod Diameter:\u003c\/strong\u003e 0.4375 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Angle:\u003c\/strong\u003e 26 Degree\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Spring Diameter:\u003c\/strong\u003e 1.50 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Spring Maximum Lift:\u003c\/strong\u003e 0.700 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 style=\"color: red;\" href=\"https:\/\/southwestspeed.com\/cdn\/shop\/files\/EDL_50459Instructions.pdf\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e","brand":"EDL 50459","offers":[{"title":"Default Title","offer_id":50395484029209,"sku":"EDL 50459","price":1343.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/0477\/6985\/files\/EDL_50459c.jpg?v=1749840497","url":"https:\/\/southwestspeed.com\/products\/edl-50459","provider":"Southwest Speed","version":"1.0","type":"link"}