{"product_id":"cylinder-head-4","title":"Performer LT1 Cylinder Head (54cc)","description":"Edelbrock part #61905 Performer small-block Chevy LT1 (1992-97) Performer complete cylinder head delivers 24 horsepower over stock and raise the peak power level by 500 rpm. This head is designed to accept factory style self-aligning rockers. This Performer LT1 cylinder head is 50-state street legal and accept factory center bolt valve covers. It features exhaust ports in the stock location for use with stock or aftermarket exhaust manifolds and headers. Match with RPM Air-Gap intake #7107, throttle body #3809 and camshaft #2108 for the Total Power Package combo. Cylinder Head Specifications: - Exhaust port location: Stock - Spark plug fitment: 14mm x 3\/4 reach, gasket seat\r\n\u003cb\u003eVehicle Specific\u003c\/b\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eChevrolet:Small-Block Gen II LT1:350 (5.7L)\u003c\/li\u003e\r\n\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eAttributes:\u003c\/h3\u003e\r\n\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\r\n\u003cli\u003e\n\u003cb\u003eBrand Name: \u003c\/b\u003eEdelbrock\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eGTIN: \u003c\/b\u003e00085347619054\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003e9040: \u003c\/b\u003eD-215-70\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eAssembled: \u003c\/b\u003eYes\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eCNC Ported: \u003c\/b\u003eNo\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eCamshaft Type: \u003c\/b\u003eHydraulic Roller\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eCombustion Chamber Volume: \u003c\/b\u003e54\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eConstruction Type: \u003c\/b\u003eComplete\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eCylinder Head Gasket Included: \u003c\/b\u003eNo\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eDeck Height: \u003c\/b\u003e9.025\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eDeck Thickness: \u003c\/b\u003e0.625\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eEGR Port: \u003c\/b\u003eNo\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eExhaust Port Location: \u003c\/b\u003eStandard\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eExhaust Runner Volume: \u003c\/b\u003e60\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eExhaust Valve Diameter: \u003c\/b\u003e1.55\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eFamily: \u003c\/b\u003ePerformer\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eGrade Type: \u003c\/b\u003ePerformance\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eGuide Material: \u003c\/b\u003eManganese Bronze\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eGuide Plates Included: \u003c\/b\u003eNo\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eHead Casting Number: \u003c\/b\u003e31-6190\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eHorsepower: \u003c\/b\u003e300-450\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eIntake Runner Volume: \u003c\/b\u003e170\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eIntake Valve Diameter: \u003c\/b\u003e1.94\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eMaterial: \u003c\/b\u003eAluminum\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eMounting Hardware Included: \u003c\/b\u003eNo\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003ePush Rod Diameter: \u003c\/b\u003e(Suggested) 0.375\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eQuantity: \u003c\/b\u003eSold Individually\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eRGL: \u003c\/b\u003eWARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eRetainer Included: \u003c\/b\u003eYes\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eRocker Arm Stud Diameter: \u003c\/b\u003e0.4375\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eRocker Arm Studs\/Bolts Included: \u003c\/b\u003eNo\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eRocker Arms Included: \u003c\/b\u003eNo\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eSeat Angle: \u003c\/b\u003eExhaust 45 deg\/Intake 45\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eSeat Material: \u003c\/b\u003eDuctile Iron\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eSeries: \u003c\/b\u003ePerformer\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Angle: \u003c\/b\u003e23\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Cover Gasket Included: \u003c\/b\u003eNo\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Lock Material: \u003c\/b\u003eSteel\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Locks Included: \u003c\/b\u003eYes\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Seals Included: \u003c\/b\u003eYes\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Spring Diameter: \u003c\/b\u003e1.46\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Spring Maximum Lift: \u003c\/b\u003e0.600\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Spring Retainers Included: \u003c\/b\u003eYes\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Springs Included: \u003c\/b\u003eYes\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Stem Diameter: \u003c\/b\u003e0.3125\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValves Included: \u003c\/b\u003eYes\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch3\u003eExtended Information:\u003c\/h3\u003e\r\n\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\r\n\u003cli\u003e\n\u003cb\u003eCountry of Origin: \u003c\/b\u003eUnited States\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eEmissions : \u003c\/b\u003eCARB Eligible\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch3\u003ePacking Information:\u003c\/h3\u003e\r\n\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\r\n\u003cli\u003e\n\u003cb\u003eQuantity of Each: \u003c\/b\u003e1\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003ePackage UOM: \u003c\/b\u003eEA\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eDimension: \u003c\/b\u003e22.1875 x 10.125 x 7.1875 inches\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eWeight: \u003c\/b\u003e31.65 POUNDS\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cdiv id=\"sema-product-fitment\" class=\"product__accordion accordion fitment\"\u003e\u003c\/div\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44336464068653,"sku":"BDVJ-61905","price":2175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/2780\/2157\/files\/061905_v1.jpg?v=1762922597","url":"https:\/\/montgomeryparts.com\/products\/cylinder-head-4","provider":"Montgomery Parts","version":"1.0","type":"link"}