{"product_id":"cylinder-heads-ede61029","title":"Performer RPM Bare Cylinder Head \u003cbr\u003e 65-76 Oldsmobile 400, 425, 455 CID V8","description":"\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eThe Edelbrock 61029 Performer RPM Cylinder Head for 1965-76 Oldsmobile 400, 425 and 455 CID V8 engines with hydraulic flat tappet cam is a perfect performance upgrade for big-block Olds-powered street machines and muscle cars. This aluminum cylinder head supersedes the 60519 Olds head and features a redesigned 77cc combustion chamber, larger intake valves and refined bowl blending for improved flow. The 61029 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 61029 heads are cast and machined by Edelbrock in the USA and comes complete with the highest quality intake and exhaust valves and valve springs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifics and Features:\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cli\u003eCamshaft Type: Flat Tappet\u003c\/li\u003e\n\u003cli\u003eCNC Ported: No\u003c\/li\u003e\n\u003cli\u003eCombustion Chamber Volume: 77 CCM\u003c\/li\u003e\n\u003cli\u003eConstruction Type: Complete\u003c\/li\u003e\n\u003cli\u003eDeck Thickness: 0.625 IN\u003c\/li\u003e\n\u003cli\u003eEGR Port: No\u003c\/li\u003e\n\u003cli\u003eExhaust Port Location: Standard\u003c\/li\u003e\n\u003cli\u003eExhaust Runner Volume: 128 CCM\u003c\/li\u003e\n\u003cli\u003eExhaust Valve Diameter: 1.680 IN\u003c\/li\u003e\n\u003cli\u003eFamily: Performer RPM\u003c\/li\u003e\n\u003cli\u003eGrade Type: Performance\u003c\/li\u003e\n\u003cli\u003eGuide Material: Manganese Bronze\u003c\/li\u003e\n\u003cli\u003eGuide Plate Material: Hardened Steel\u003c\/li\u003e\n\u003cli\u003eGuide Plates Included: Yes\u003c\/li\u003e\n\u003cli\u003eHead Casting Number: N\/A\u003c\/li\u003e\n\u003cli\u003eHorsepower: 450-600 HJ\u003c\/li\u003e\n\u003cli\u003eIntake Runner Volume: 218 CCM\u003c\/li\u003e\n\u003cli\u003eIntake Valve Diameter: 2.150 IN\u003c\/li\u003e\n\u003cli\u003eMaterial: Aluminum\u003c\/li\u003e\n\u003cli\u003ePush Rod Diameter: (Suggested) 0.375 IN\u003c\/li\u003e\n\u003cli\u003eQuantity: Sold Individually\u003c\/li\u003e\n\u003cli\u003eRetainer Included: Yes\u003c\/li\u003e\n\u003cli\u003eRocker Arm Stud Diameter: 0.4375 IN\u003c\/li\u003e\n\u003cli\u003eSeat Angle: Exhaust 60 deg\/Intake 60 DD\u003c\/li\u003e\n\u003cli\u003eSeat Material: Ductile Iron\u003c\/li\u003e\n\u003cli\u003eSeries: Performer RPM\u003c\/li\u003e\n\u003cli\u003eValve Angle: 6 DD\u003c\/li\u003e\n\u003cli\u003eValve Included: Yes\u003c\/li\u003e\n\u003cli\u003eValve Spring Diameter: 1.105 IN\u003c\/li\u003e\n\u003cli\u003eValve Spring Maximum Lift: 0.600 IN\u003c\/li\u003e\n\u003cli\u003eValve Springs Included: Yes\u003c\/li\u003e\n\u003cli\u003eValve Stem Diameter: 0.3438 IN\u003c\/li\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Includes:\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cli\u003ePerformer RPM Cylinder Head for Olds\u003c\/li\u003e\u003cbr\u003e\u003cbr\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":52773686903147,"sku":"EDE-61029","price":1251.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1961\/1987\/files\/EDE-61029-1.jpg?v=1768812841","url":"https:\/\/caautoparts.com\/products\/cylinder-heads-ede61029","provider":"CA Auto Parts","version":"1.0","type":"link"}