{"product_id":"rpm-cnc-pontiac-cylinder-head-72cc","title":"Edelbrock 60539 - RPM CNC Pontiac Cylinder Head 72cc","description":"\u003cp\u003eThe Edelbrock #60539 Performer RPM CNC Bare Cylinder Head has the same specifications as our popular Performer RPM cylinder head for 1962-79 389-455 c.i.d. Pontiac engines, but feature a CNC machined combustion chamber. The CNC machined chamber results in a consistent and precise chamber for improved flow performance. Performer RPM CNC cylinder head is available in two chamber sizes. Performer RPM CNC cylinder head with 72cc chambers are best for higher compression engines. The Edelbrock #60539 Performer RPM CNC cylinder head is patterned after the same port flange configuration as the 1969-1970 Ram-Air IV Pontiac Cylinder Head.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembled:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Ported:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion Chamber Volume:\u003c\/strong\u003e 72 cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction Type:\u003c\/strong\u003e Bare\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 10.25 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 No\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 175\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily:\u003c\/strong\u003e Performer RPM\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 6152F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Runner Volume:\u003c\/strong\u003e 215 cc\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\u003eQuantity:\u003c\/strong\u003e Sold Individually\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetainer Included:\u003c\/strong\u003e No\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\u003cli\u003e\n\u003cstrong\u003eSeat Material:\u003c\/strong\u003e Ductile Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Performer RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Angle:\u003c\/strong\u003e 14 deg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Cover Gasket Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Locks Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Seals Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44849274781831,"sku":"EDE60539","price":2102.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/4008\/1543\/files\/060539_v1.jpg?v=1788268816","url":"https:\/\/checkout.northernperformance.ca\/products\/rpm-cnc-pontiac-cylinder-head-72cc","provider":"Northern Performance","version":"1.0","type":"link"}