Edelbrock Performer Cylinder Head for Pontiac V8
350-60575
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Pontiac Performer Aluminum Cylinder Heads
These 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. This Performer head is 50-state emissions legal for 1965-79 vehicles. It features 87cc combustion chambers designed to maximize performance while using less expensive, low-octane fuel with a streetable 9.5:1 compression ratio.
Tech Tip: These heads require Ram Air IV (round port) style exhaust manifolds or headers and Edelbrock head bolt kit 350-8549.
To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs, such as the RC12YC. They are 0.230'' shorter than conventional spark plugs and have a 5/8'' hex for easier access.
| 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 |
| Valve Lift | Intake | Exhaust |
| .100'' | 72 | 56 |
| .200'' | 138 | 106 |
| .300'' | 198 | 141 |
| .400'' | 239 | 163 |
| .500'' | 264 | 172 |
| .600'' | 275 | 185 |
| .700'' | N/A | N/A |
| Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28'' H2O | ||
Specifications:
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.