{"product_id":"edelbrock-performer-jeep-4-0l-assembled-head-55cc-50169","title":"Edelbrock Performer Jeep 4.0L Assembled Head, 55cc 50169","description":"\u003cp\u003e\u003cspan class=\"description\"\u003eCylinder Head; Performer; Complete; For Use With Jeep 4.0L; Natural Aluminum; 144 CC Intake Port; 77 CC Exhaust Port; 55 CC Chamber Volume; With 1.91 Inch Intake Valves\/ 1.50 Inch Exhaust Valves\/ Bronze Valve Guides\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\"\u003eThis new Performer cylinder head is designed as a bolt-on performance upgrade for 1987 to 2006 Jeeps with a 4.0L inline six cylinder engine. The Performer Jeep 4.0L is designed with 1991 To 2006 4.0L intake port locations and must be used with 1991 to 2006 intake manifold. The Performer Jeep 4.0L is designed with 1991 To 1998 4.0L exhaust port locations and must be used with 1991 To 1998 factory header or aftermarket exhaust header. This cylinder head will also fit 1976 To 1990 AMC 4.2L engines with no modification to the water jacket and the appropriate intake manifold and header combination. Performer Jeep cylinder head features all-new better flowing intake\/exhaust ports along with a modern combustion chamber design and backcut and swirl polished valves. It retains the stock valve angle, pushrod length and valve cover rail height for use with factory components and off the shelf accessories. It also features larger reinforced rocker bosses for improved strength at high RPM and Heli-Coil® threaded inserts in the manifold bolt holes for added strength. A 3\/4 Inch deck throughout the head also promotes stiffness and durability. This cylinder head is machined to accept either distributor or coil pack ignition.\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\"\u003eDesigned As A Bolt-On Performance Upgrade For 1987 To 2006 Jeeps With A 4.0L Inline Six Cylinder Engine\u003c\/li\u003e\n\u003cli class=\"feature\"\u003eFeatures All-New Better Flowing Intake\/Exhaust Ports Along With A Modern Combustion Chamber Design And Backcut And Swirl Polished Valves\u003c\/li\u003e\n\u003cli class=\"feature\"\u003eFeatures Larger Reinforced Rocker Bosses For Improved Strength At High RPM And Heli-Coil® Threaded Inserts In The Manifold Bolt Holes For Added Strength\u003c\/li\u003e\n\u003cli class=\"feature\"\u003e3\/4 Inch Deck Throughout The Head Also Promotes Stiffness And Durability. This Cylinder Head Is Machined To Accept Either Distributor Or Coil Pack Ignition\u003c\/li\u003e\n\u003cli class=\"feature\"\u003eCylinder Head Is Machined To Accept Either Distributor Or Coil Pack Ignition\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\"\u003eJeep L6 4.0L\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\"\u003e55 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\"\u003e144 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\"\u003e77 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\"\u003e1.91 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\"\u003e1-1\/2 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\"\u003eStraight\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\"\u003eNo Rocker Arm Nut\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\"\u003eNo\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\"\u003eNo Valve Stem Seal\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\"\u003eNo\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\"\u003eNo\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\"\u003eNo\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\/50169.pdf\" target=\"_blank\"\u003e50169.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":50947098607673,"sku":"50169","price":3519.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/2938\/0153\/files\/ImageServerAPI-2026-10-25T214816.845.jpg?v=1792979322","url":"https:\/\/summitforgesupply.com\/products\/edelbrock-performer-jeep-4-0l-assembled-head-55cc-50169","provider":"Summit Forge Supply","version":"1.0","type":"link"}