RPM Pontiac Cylinder Head 72cc Bare

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The Edelbrock #60589 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 #60589 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.

Documents & Installation Notes


Availability Available
Application Application Specific
UPC 00085347605897
Series Performer RPM
Quantity Sold Individually
Guide Plate Material Hardened Steel
Horsepower 450-550 HP
Availability Note Available to Order
Warranty 12 Months
Seat Angle Exhaust 45 deg/Intake 45 deg
Emissions Code
Hazardous Materials Warning WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Installation Notes
  • - Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using.
  • - These heads require Ram Air IV (round port) style exhaust manifolds or headers
  • - Edelbrock head bolt kit #8549
  • - Deck thickness: 5/8"
  • - Rocker stud diameter: 7/16"
  • - Pushrod diameter: 5/16" (width of slot in guide plate).
CNC Ported Yes
Combustion Chamber Volume 72 cc
Deck Height 10.250 in
Deck Thickness 0.625 in
Guide Plates Included Yes
Intake Runner Volume 215 cc
Material Aluminum
Push Rod Diameter 0.312 in
Valve Angle 14 deg