{"product_id":"performer-rpm-cylinder-head-61025-bb-oldsmobile-hydraulic-roller-camshaft","title":"Edelbrock Performer RPM Cylinder Head #61025 BB Oldsmobile, Hydraulic Roller Camshaft","description":"\u003cp\u003eThe Edelbrock #61025 Performer RPM Cylinder Head for 1965-76 Oldsmobile 400, 425 and 455 CID V8 engines with hydraulic roller cam is a perfect performance upgrade for big-block Olds-powered street machines and muscle cars. This aluminum cylinder head supersedes the 60515 Olds head and features a redesigned 77cc combustion chamber, larger intake valves and refined bowl blending for improved flow. The #61025 Performer RPM head has improved accommodation for a factory-style mechanical fuel pump with spark plug locations moved slightly towards the exhaust valve for optimized combustion. Intake and exhaust ports have been improved over previous designs, and extra material has been added above the intake port for head work. Performer RPM #61025 heads are cast and machined by Edelbrock in the USA and comes complete with the highest quality intake and exhaust valves and valve springs.\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 Hydraulic Roller\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 77 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 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 128\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Valve Diameter:\u003c\/strong\u003e 1.680 in\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\u003eHorsepower:\u003c\/strong\u003e 450-600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Runner Volume:\u003c\/strong\u003e 218 cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Valve Diameter:\u003c\/strong\u003e 2.150 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) 0.375 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 0.4375 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 60 deg\/Intake 60 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\u003c\/ul\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44849308500103,"sku":"EDE61025","price":2278.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/4008\/1543\/files\/061025_v1.jpg?v=1788268830","url":"https:\/\/checkout.northernperformance.ca\/products\/performer-rpm-cylinder-head-61025-bb-oldsmobile-hydraulic-roller-camshaft","provider":"Northern Performance","version":"1.0","type":"link"}