Description

The Edelbrock #60599 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 #60599 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 #60599 Performer RPM head with the 72cc combustion chamber are for higher compression engines. Performer RPM head is perfect for street performance daily drivers street rods and muscle cars where seat-of-the-pants performance is needed. This cylinder head delivers great throttle response and power from 1500 to 6500 rpm. They also feature the highest quality intake and exhaust valves and valve springs.

• Specifications

  • Assembled: Yes
  • Camshaft Type: Flat Tappet
  • CNC Ported: No
  • Combustion Chamber Volume: 72 CCM
  • Construction Type: Complete
  • Cylinder Head Gasket Included:No
  • Deck Height:10.25 IN
  • Deck Thickness: 0.625"
  • EGR Port: No
  • Exhaust Port Location: Standard
  • Exhaust Runner Volume: 175 CCM
  • Exhaust Valve Diameter: 1.66"
  • Family: Performer RPM
  • Grade Type: Performance
  • Guide Material: Manganese Bronze
  • Guide Plate Material: Hardened Steel
  • Guide Plate Material:Chromoly Steel
  • Guide Plates Included: Yes
  • Head Casting Number:31-6056
  • Horsepower: 450-550 HJ
  • Intake Runner Volume: 215 CCM
  • Intake Valve Diameter: 2.11"
  • Material: Aluminum
  • Mounting Hardware Included: No
  • Push Rod Diameter: (Suggested) 0.3125 Inch
  • Quantity: Sold Individually
  • Retainer Included: Yes
  • Rocker Arm Stud Diameter: 0.4375 Inch
  • Rocker Arm Studs/Bolts Included:Yes
  • Rocker Arms Included:No
  • Seat Angle: Exhaust 45 deg/Intake 45 DD
  • Seat Material: Ductile Iron
  • Series: Performer RPM
  • Valve Angle: 14 DD
  • Valve Cover Gasket Included: No
  • Valve Lock Material:Chromoly Steel
  • Valve Lock Material:Steel
  • Valve Locks Included:Yes
  • Valve Seals Included: Yes
  • Valve Spring Diameter: 1.46 Inch
  • Valve Spring Maximum Lift: 0.575 Inch
  • Valve Spring Retainers Included:Yes
  • Valve Springs Included: Yes
  • Valve Stem Diameter: 0.3438 Inch
  • Valves Included:Yes

• 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
  • Pontiac Parisienne 1966-1976
  • Pontiac Star Chief 1965-1966
  • Pontiac Strato-Chief 1966-1970
  • Pontiac Tempest 1968-1970