Description

Edelbrock part #61525 Performer RPM CNC Cylinder Heads have the same specifications as our popular Performer RPM cylinder heads for 1962-79 389-455 c.i.d. Pontiac engines but feature a CNC machined combustion chamber. The Edelbrock #61525 Performer RPM CNC 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. The 87cc chamber version is ideal for 9.5:1 engines and will deliver excellent street performance on low octane fuel. The Edelbrock #61525 Performer RPM CNC cylinder head is patterned after the same port flange configuration as the 1969-1970 Ram-Air IV Pontiac Cylinder Head.

• Specifications

  • Intake Runner Volume: 215 CCM
  • Valve Spring Maximum Lift: 0.575 Inch
  • CNC Ported: Yes
  • Intake Valve Diameter: 2.11"
  • Combustion Chamber Volume: 87 CCM
  • Series: Performer RPM
  • Exhaust Runner Volume: 175 CCM
  • Horsepower: 450-600 HJ
  • Seat Material: Ductile Iron
  • Guide Plates Included: Yes
  • Valve Angle: 14 DD
  • Exhaust Port Location: Standard
  • Valve Spring Diameter: 1.46 Inch
  • Valve Stem Diameter: 0.3438 Inch
  • Camshaft Type: Hydraulic Roller
  • Head Casting Number: N/A
  • Valve Included: Yes
  • Retainer Included: Yes
  • Grade Type: Performance
  • Push Rod Diameter: (Suggested) 0.3125 Inch
  • EGR Port: Yes
  • Rocker Arm Stud Diameter: 0.4375 Inch
  • Exhaust Valve Diameter: 1.66"
  • Deck Thickness: 0.625"
  • Guide Material: Manganese Bronze
  • Family: Performer RPM
  • Construction Type: Complete
  • Quantity: Sold Individually
  • Valve Springs Included: Yes
  • Guide Plate Material: Hardened Steel
  • Material: Aluminum
  • Seat Angle: Exhaust 45 deg/Intake 45 DD

• Product Fits

  • Buick LeSabre 1975-1975
  • Oldsmobile 98 1975-1975
  • Oldsmobile Custom Cruiser 1975-1975
  • Oldsmobile Delta 88 1975-1975
  • Pontiac Acadian 1970-1971
  • Pontiac Bonneville 1962-1978
  • Pontiac Catalina 1962-1978
  • Pontiac Executive 1967-1970
  • Pontiac Firebird 1967-1978
  • Pontiac Grand Am 1973-1975
  • Pontiac Grand LeMans 1975-1977
  • Pontiac Grand Prix 1962-1977
  • Pontiac Grand Safari 1971-1978
  • Pontiac Grandville 1971-1975
  • Pontiac GTO 1964-1973
  • Pontiac Laurentian 1966-1976
  • Pontiac LeMans 1968-1977
  • Pontiac Parisienne 1966-1976
  • Pontiac Star Chief 1962-1966
  • Pontiac Strato-Chief 1966-1970
  • Pontiac Tempest 1968-1970