{"product_id":"edelbrock-performer-rpm-big-block-chevy-rectangular-port-head-118cc-chamber-60559","title":"Edelbrock Performer RPM Big-Block Chevy Rectangular-Port Head, 118cc Chamber 60559","description":"\u003cp\u003e\u003cspan class=\"description\"\u003eCylinder Head; Performer RPM; Assembled; Chevy Big Block; Natural Aluminum; 315 CC\/ 300 CC Rectangular Intake Port; 110 CC Exhaust Port; 118 CC Chamber Volume; 2.19 Inch Intake Valve; 1.88 Inch Exhaust Valve; 1.55 Inch Spring Diameter; Single; With Pushrod Guides; Rocker Studs\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"detail-p65-warning\"\u003e\n\u003cspan class=\"restriction-icon restriction-p65\"\u003e\u003cimg src=\"https:\/\/wwwsc.ekeystone.com\/-\/media\/Project\/KAO\/eKeystone\/Prop65\/prop65.gif\" title=\"Prop 65 WARNING: This product can expose you to chemicals known to the State of California to cause cancer and\/or birth defects or other reproductive harm.  For more information go to www.P65Warnings.ca.gov.\" alt=\"Restriction Icon\"\u003e\u003c\/span\u003eProp 65 WARNING: This product can expose you to chemicals known to the State of California to cause cancer and\/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/div\u003e\n\u003cdiv class=\"detail-p65-warning\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"detail-p65-warning\"\u003e\n\u003cdiv class=\"component kaoxa-product-detail-description col-12 indent-bottom\"\u003e\n\u003cdiv class=\"component-content\"\u003e\n\u003cdiv class=\"tabbable populated\"\u003e\n\u003cdiv class=\"product-detail-description\"\u003ePerformer RPM heads are perfect for street performance, daily drivers, street rods and muscle cars where Seat-Of-The-Pants performance is needed. These heads give great Torque and Horsepower up to 6500 RPM\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"component kaoxa-product-detail-features col-12\"\u003e\n\u003cdiv class=\"component-content\"\u003e\n\u003cdiv class=\"tabbable populated\"\u003e\n\u003cdiv class=\"product-detail-features\"\u003e\n\u003ch1\u003eFeatures \u0026amp; Benefits\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli class=\"feature\"\u003eSpecially Designed Ports For Increased Flow And Velocity Over Standard Big Block Heads\u003c\/li\u003e\n\u003cli class=\"feature\"\u003eHighly Efficient 118 Cubic Centimeters Open-Style Combustion Chamber\u003c\/li\u003e\n\u003cli class=\"feature\"\u003eHigh Velocity 315 Cubic Centimeters Long\/300 Cubic Centimeters Short Intake Ports\u003c\/li\u003e\n\u003cli class=\"feature\"\u003eSmaller Than Stock 11\/32 Inch Valve Stems Promote Excellent Flow And Lighter Valve Weight\u003c\/li\u003e\n\u003cli class=\"feature\"\u003ePerformer Heads Include Drilled Heat Cross-Over\u003c\/li\u003e\n\u003cli class=\"feature\"\u003eThese Heads Give Great Torque And Horsepower Up To 6500 RPM\u003c\/li\u003e\n\u003cli class=\"feature\"\u003eLimited 1 Year Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eAttributes\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eCondition: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eNew\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eEngine Compatibility: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eChevy Big Block V8 7.4L 454 Cubic Inch\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eStyle: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eAssembled\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eFinish: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eSatin\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eMaterial: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eAluminum\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eCNC-Machined: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eYes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eCombustion Chamber Volume (cc): \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003e118 Cubic Centimeter\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eIntake Runner Volume (CC): \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003e315 Cubic Centimeter\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eExhaust Runner Volume (CC): \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003e110 Cubic Centimeter\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003ePort Shape: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eRectangular\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eIntake Port Location: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eStandard\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eExhaust Port Location: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eStandard\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eIntake Valve Diameter (IN): \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003e2.19 Inch\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eExhaust Valve Diameter (IN): \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003e1.88 Inch\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eIncludes Valves: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eYes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eSpark Plug Angle: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eAngled\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eRocker Arm Nut Thread Size: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003e7\/16 Inch\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eIncludes Rocker Arm Studs: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eYes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eValve Lock Type: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003e7 Degree\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eValve Stem Seal Type: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eUmbrella\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eValve Guide Material: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eManganese Bronze\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eNumber Of Springs Per Valve: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003e1\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eValve Seats Machined: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eYes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eSteam Holes Drilled: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eNo\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eMachined For O-Ring: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eNo\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eIncludes Guideplates: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eYes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"attribute-name\"\u003eIncludes Damper Spring: \u003c\/span\u003e\u003cspan class=\"attribute-value\"\u003eYes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-3\"\u003eEDELBROCK\u003c\/div\u003e\n\u003cdiv class=\"col-1\"\u003eE11\u003c\/div\u003e\n\u003cdiv class=\"col-lg\"\u003eCams, Carburetors, Chrome Acc., Engine Sys., Exhaust Sys., Headers, Heads, Injection, Manifolds, Mufflers, Shocks, Suspension\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cspan\u003eWarranty Return Policy:\u003c\/span\u003e Return for supplier inspection - Immediate credit issued upon return to KAO\/NTP.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-3\"\u003eEDEL.CYLHEAD\u003c\/div\u003e\n\u003cdiv class=\"col-1\"\u003eE38\u003c\/div\u003e\n\u003cdiv class=\"col-lg\"\u003eCylinder Heads\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cspan\u003eWarranty Return Policy:\u003c\/span\u003e Return for supplier inspection - Immediate credit issued upon return to KAO\/NTP.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch1\u003eInstallation Instructions\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/ekeystone.vehiclepartimages.com\/PMDT\/EDE\/InstallationInstructions\/60559.pdf\" target=\"_blank\"\u003e60559.pdf\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":50947163717689,"sku":"60559","price":2256.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/2938\/0153\/files\/ImageServerAPI-2026-10-25T224606.694.jpg?v=1792982779","url":"https:\/\/summitforgesupply.com\/products\/edelbrock-performer-rpm-big-block-chevy-rectangular-port-head-118cc-chamber-60559","provider":"Summit Forge Supply","version":"1.0","type":"link"}