{"product_id":"rpm-amc-jeep-cylinder-head-with-exhaust-crossover-complete","title":"Edelbrock 60139 - RPM AMC\/ Jeep Cylinder Head With Exhaust Crossover Complete","description":"\u003cp\u003eThe Edelbrock #60139 Performer RPM cylinder head is designed as a bolt-on performance upgrade for any 1967-91 AMX, Javelin or Jeep with a 343, 360, 390 or 401 AMC V8 engine. They include adjustable rocker studs and guide plates set-up for use with small-block Ford style adjustable 1.6:1 ratio rockers. The intake flange is dual-drilled to accommodate early and late model intake bolt patterns, covering 1967-91. A Complete head includes larger than- stock valve springs to handle most high-lift cams. They feature stock location ports for compatibility with standard manifolds and headers. A direct bolt-on for 1970 and later engines with 1\/2\" head bolts, This head includes step-dowel pins for pre-1970 engines. Their dual-quench combustion chambers produce approximately 9.5:1 compression in 401 V8 engines. The 45deg intake seat angle offers improved mid- to high-lift flow over the stock 30deg angle. The Edelbrock #601139 Performer RPM cylinder head has a machined heat crossover for 50-state emissions legal performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembled:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamshaft Type:\u003c\/strong\u003e Flat Tappet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Ported:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion Chamber Volume:\u003c\/strong\u003e 54 cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction Type:\u003c\/strong\u003e Complete\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Head Gasket Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeck Height:\u003c\/strong\u003e 9.175 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeck Thickness:\u003c\/strong\u003e 0.625 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGR Port:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Port Location:\u003c\/strong\u003e Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Runner Volume:\u003c\/strong\u003e 70\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Valve Diameter:\u003c\/strong\u003e 1.60 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily:\u003c\/strong\u003e Performer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuide Material:\u003c\/strong\u003e Manganese Bronze\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuide Plate Material:\u003c\/strong\u003e Chromoly Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuide Plates Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Casting Number:\u003c\/strong\u003e 31-6013\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 300-450\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Runner Volume:\u003c\/strong\u003e 185 cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Valve Diameter:\u003c\/strong\u003e 2.02 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hardware Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePush Rod Diameter:\u003c\/strong\u003e (Suggested) 0.3125 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold Individually\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetainer Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRocker Arm Stud Diameter:\u003c\/strong\u003e 0.375 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRocker Arm Studs\/Bolts Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRocker Arms Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat Angle:\u003c\/strong\u003e Exhaust 45 deg\/Intake 45 deg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44849260462215,"sku":"EDE60139","price":2428.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/4008\/1543\/files\/060139_v1.jpg?v=1788268809","url":"https:\/\/checkout.northernperformance.ca\/products\/rpm-amc-jeep-cylinder-head-with-exhaust-crossover-complete","provider":"Northern Performance","version":"1.0","type":"link"}