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Vehicle Info NeededPerformer RPM Cylinder Head for Pontiac V8
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Lowest Price Guarantee- Pontiac Performer RPM Cylinder Head
- 1962-1979 Pontiac 389-455ci
- Round Exhaust Port (Ram Air)
- Port Volume: 215cc/175cc
- 72cc Combustion Chambers
- 7/16" Rocker Studs
- Bare Head, Sold Each
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 SeatValve 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 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.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Since founder Vic Edelbrock Sr. began building performance intake manifolds in 1938, Edelbrock has grown into one of the most trusted names in American high-performance parts, from carburetors and intake manifolds to cylinder heads, crate engines, and EFI systems. JEGS has spent decades supplying Edelbrock components to racers, engine builders, and street enthusiasts, backing this extensive lineup with in-house technical support, fast shipping, and a Price Match Guarantee so you can choose proven Edelbrock parts with confidence.
These cylinder heads are designed for outstanding performance gains in 1962-79 389-455ci Pontiac engines. They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head. Performer heads #60579/60575 are 50-state emissions legal for 1965-79 vehicles. They have 87cc combustion chambers designed to maximize performance while using less expensive, low octane fuel with a streetable 9.5:1 compression ratio.
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Performer RPM heads with 72cc combustion chamber are for higher compression engines. Performer RPM #60509 is semi-machined and must be finished by a professional head porter. They include valve guides and seats installed with no intake pushrod holes. Performer RPM #60587 is not port matched or bowl blended and is NHRA accepted for Stock and Super Stock.
Performer RPM CNC Heads feature the same specifications as the Performer RPM heads but have CNC-machined combustion chambers, which results in a consistent and precise chamber for improved flow.
Features
- Combustion Chamber Volume: 87cc or 72cc
- Intake Runner Volume: 215cc
- Exhaust Runner Volume: 175cc
- Intake Valve Diameter: 2.11"
- Exhaust Valve Diameter: 1.66"
- Valve Guides: Manganese Bronze
- Deck Thickness: 5/8"
- Valve Spring Diameter: 1.46"
- Maximum Lift: .575"
- Pushrod Diameter: 7/16"
- Guideplate: Hardened Steel
- Valve Angle: 14°
- Exhaust Port Location: Stock Ram Air IV
- Spark Plug Fitment: 14mm x 3/4 Reach, Gasket Seat
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