Description
Powerful and lightweightThe Edelbrock Performer Series cylinder head is designed for outstanding performance gains in 1962-79 389-455 Pontiac engines. This head is 50-state emissions legal for 1965-79 vehicles. They feature 87cc combustion chambers designed to maximize performance while using less expensive, low-octane fuel with a streetable 9.5:1 compression ratio. They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head. A performer head is perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. They also feature the highest quality intake and exhaust valves and valve springs. Available in hydraulic flat tappet and hydraulic roller lifter configurations. 12 Month Warranty.Horsepower: 400-500 HPCARB Executive Order Number: D-215-94Deck Thickness: 0.625 inIntake Runner Volume: 215 ccExhaust Runner Volume: 175ccCombustion Chamber Volume: 87 ccValve Angle: 14 degreesIntake Valve Diameter: 2.11 inExhaust Valve Diameter: 1.66 inSeat Angle: Exhaust 45 deg/Intake 45 degGuide Plates Included: YesGuide Plate Material: Hardened SteelRocker stud diameter: 7/16″
