RPM Pontiac CNC Chamber 87cc Bare

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The Edelbrock #60609 Performer RPM CNC Bare 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 #60609 Performer RPM CNC cylinder head is patterned after the same port flange configuration as the 1969-1970 Ram-Air IV Pontiac Cylinder Head.


Availability Available
Application Application Specific
UPC 00085347606092
Series Performer RPM
Quantity Sold Individually
Guide Plate Material Hardened Steel
Horsepower 450-600 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.
  • - Features CNC machined combustion chamber for a consistent and precise chamber for improved flow performance and spark plug location - These heads require Ram Air IV (round port) style exhaust manifolds or headers
  • - Edelbrock head bolt kit #8549
  • - Match with Edelbrock complete head gasket set #7382.
  • - Deck thickness: 5/8"
  • - Pushrod diameter: 5/16" (width of slot in guide plate).
CNC Ported Yes
Combustion Chamber Volume 87 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