Description

The Edelbrock #60509 Performer RPM cylinder heads are designed for outstanding performance gains in 1962-79 389-455 c.i.d. Pontiac engines. They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head. The Edelbrock #60509 Performer RPM cylinder head is designed for outstanding performance gains in 1962-79 389-455 c.i.d. Pontiac engines. They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head. The Edelbrock #60509 Performer RPM head with the 72cc combustion chamber are for higher compression engines. Performer RPM #60509 is semi-machined and must be finished by a professional cylinder head porter. They include valve guides and seats installed with no intake pushrod holes.

• Specifications

  • Assembled:No
  • CNC Ported: No
  • Combustion Chamber Volume: 72 CCM
  • Combustion Chamber Volume: Possible 72 CCM
  • Construction Type: Pro-Port Raw
  • Cylinder Head Gasket Included:No
  • Deck Height:10.25 IN
  • Deck Thickness: 0.625"
  • EGR Port: No
  • Exhaust Port Entry: 1.46 in x 1.40"
  • Exhaust Valve Diameter: (Suggested) 1.46 in x 1.40"
  • Exhaust Valve Pierce Points (X Y)(C): 1.150 in 0.000 Inch
  • Family: Performer RPM
  • Grade Type: Performance
  • Guide Material: Manganese Bronze
  • Guide Plates Included: No
  • Head Casting Number:31-6056
  • Intake Port Entry: 1.10 in x 2.02"
  • Intake Runner Volume: 215 CCM
  • Intake Valve Diameter: (Suggested) 2.11"
  • Intake Valve Pierce Points (X Y)(C): 0.880 in 0.000 Inch
  • Material: Aluminum
  • Mounting Hardware Included: No
  • Quantity: Sold Individually
  • Retainer Included: No
  • Rocker Arm Studs/Bolts Included:No
  • Rocker Arms Included:No
  • Seat Angle: Exhaust 45 deg/Intake 45 DD
  • Seat Material: Ductile Iron
  • Series: Pro-Port
  • Specialty: Hot Isostatic Pressing (HIP) Processing
  • Valve Angle: 14 DD
  • Valve Cover Gasket Included: No
  • Valve Guides Included: Yes
  • Valve Locks Included:No
  • Valve Seals Included: No
  • Valve Seats Included: Yes
  • Valve Spacing: 2.030 Inch
  • Valve Spring Retainers Included:No
  • Valve Springs Included: No
  • Valves Included:No

• 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 1965-1978
  • Pontiac Catalina 1965-1978
  • Pontiac Executive 1967-1970
  • Pontiac Firebird 1967-1978
  • Pontiac Grand Am 1973-1975
  • Pontiac Grand LeMans 1975-1977
  • Pontiac Grand Prix 1965-1977
  • Pontiac Grand Safari 1971-1978
  • Pontiac Grandville 1971-1975
  • Pontiac GTO 1965-1973
  • Pontiac Laurentian 1966-1976
  • Pontiac LeMans 1968-1977
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  • Pontiac Star Chief 1965-1966
  • Pontiac Strato-Chief 1966-1970
  • Pontiac Tempest 1968-1970