Sign Up to Get
10% Off Your Next Order!
+ 500 FREQUENT BUYER POINTS
Be among the first to receive Weekly Specials & OPGI News.
10% off restoration parts only. 500 Frequent Buyer Points added after promotional order ships. See welcome email for full details.
Sign up for texts from OPGI, and get all our best offers and more!
By subscribing to OPGI text messaging at 80205, you agree to receive recurring autodialed marketing text msgs (e.g. cart reminders) to the mobile number used at opt-in. Consent is not a condition of purchase. Msg frequency may vary. Msg & data rates may apply. Reply HELP for help and STOP to cancel. See Terms and Conditions & Privacy Policy.
ADDED TO YOUR CART!
Cylinder Head, Performer RPM, 1962-77 Pontiac 389-455, 72cc, Bare
ADDED TO YOUR WISHLIST!
This Performer RPM cylinder head is designed for outstanding performance gains in 1962-77 389-455 c.i.d. Pontiac engines. They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head. This head has 72cc combustion chambers for higher compression engines and is perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. This cylinder head delivers great throttle response and power from 1500 to 6500 rpm. 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.
Tech Specs Deck Thickness: 0.625 in Deck Height: 10.250 in Intake Runner Volume: 215cc Exhaust Runner Volume: 175cc Combustion Chamber Volume: 72cc Valve Angle: 14 degrees Seat Angle: Exhaust 45 deg/Intake 45 deg Guide Plate Material: Hardened Steel Pushrod diameter: 5/16" (width of slot in guide plate). Drilled and tapped for 7/16-14 Rocker stud
Find parts that fit your vehicle
Holiday Bonus