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The Edelbrock #61029 Performer RPM Cylinder Head for 1965-76 Oldsmobile 400 425 and 455 CID V8 engines is a perfect performance upgrade for big-block Olds-powered street machines and muscle cars. The 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.

• Specifikationer

  • Camshaft Type: Flat Tappet
  • CNC Ported: No
  • Combustion Chamber Volume: 77 CCM
  • Construction Type: Complete
  • Deck Thickness: 0.625"
  • EGR Port: No
  • Exhaust Port Location: Standard
  • Exhaust Runner Volume: 128 CCM
  • Exhaust Valve Diameter: 1.680"
  • Family: Performer RPM
  • Grade Type: Performance
  • Guide Material: Manganese Bronze
  • Guide Plate Material: Hardened Steel
  • Guide Plates Included: Yes
  • Head Casting Number: N/A
  • Horsepower: 450-600 HJ
  • Intake Runner Volume: 218 CCM
  • Intake Valve Diameter: 2.150"
  • Material: Aluminum
  • Push Rod Diameter: (Suggested) 0.375 Inch
  • Quantity: Sold Individually
  • Retainer Included: Yes
  • Rocker Arm Stud Diameter: 0.4375 Inch
  • Seat Angle: Exhaust 60 deg/Intake 60 DD
  • Seat Material: Ductile Iron
  • Series: Performer RPM
  • Valve Angle: 6 DD
  • Valve Included: Yes
  • Valve Spring Diameter: 1.105 Inch
  • Valve Spring Maximum Lift: 0.600 Inch
  • Valve Springs Included: Yes
  • Valve Stem Diameter: 0.3438 Inch