Edelbrock Performer RPM Cylinder Head for Pontiac V8
350-60589
Items You Need
Pontiac Performer RPM Aluminum Cylinder Heads
A 72cc chamber version for high-compression, racing applications. Heads have Ram Air IV exhaust port flanges. Requires head bolt kit #350-8556 for cylinder heads manufactured before 3/15/02. For cylinder heads manufactured after 3/15/02 bolt kit #350-8549 will be required.
| Combustion Chamber Volume: | 72cc |
| 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 |
| Valve Lift | Intake | Exhaust |
| .100'' | 71 | 69 |
| .200'' | 143 | 120 |
| .300'' | 208 | 151 |
| .400'' | 253 | 173 |
| .500'' | 264 | 191 |
| .600'' | 286 | 199 |
| .700'' | N/A | N/A |
| Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28'' H2O | ||
Specifications:
Motor Vehicles
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