Edelbrock Performer RPM CNC Cylinder Head for Pontiac V8
350-61525
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Pontiac Performer RPM CNC Cylinder Heads
Performer RPM CNC Cylinder Heads have the same specifications as the popular Performer RPM cylinder heads for 389-455 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 heads are 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. Performer RPM CNC cylinder heads with 72cc chambers are best for higher compression engines. Both are patterned after the same port flange configuration as the 1969-1970 Ram-Air IV Pontiac Cylinder Head.
INSTALLATION NOTE: These heads require Ram Air IV (round port) style exhaust manifolds or headers and Edelbrock head bolt kit 350-8549. Match with Edelbrock complete head gasket set 350-7382.| Combustion Chamber Volume: | 87cc |
| Intake Runner Volume: | 215cc |
| Exhaust Runner Volume: | 175cc |
| Intake Valve Diameter: | 2.11'' |
| Exhaust Valve Diameter: | 1.66'' |
| Valve Stem Diameter: | 11/32'' |
| Valve Guides: | Manganese Bronze |
| Deck Thickness: | 5/8'' |
| Valve Spring Diameter: | 1.46'' |
| Valve Spring Maximum Lift: | 0.575'' |
| Rocker Stud: | 7/16'' |
| Guideplate: | Hardened Steel |
| Pushrod Diameter: | 5/16'' |
| Valve Angle: | 14° |
| Exhaust Port Location: | Stock Ram Air IV |
| Spark Plug Fitment: | 14mm x 3/4'' Reach, Gasket Seat |
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Specifications:
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Motor Vehicles
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Electrical Cords
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