Cylinder Heads, Edelbrock, Performer, 1965-77 Pontiac, 87CC Aluminum, Complete

Pontiac 389-455 Performer 87cc Cylinder Head by Edelbrock®

Aluminum Performer head uses an 87cc chamber for Pontiac 389-455 performance combinations.

Edelbrock® Performer aluminum cylinder head is patterned after the 1969-70 Pontiac Ram Air IV design for 389-455 performance engines. The 87cc chamber is intended for street-oriented compression ratios, while the 215cc intake and 175cc exhaust runners support improved airflow. This is a complete aluminum head and is sold individually.

Additional Technical Specifications • Horsepower: 400-500 HP • CARB Executive Order Number: D-215-94 • Deck Thickness: 0.625 in • Intake Runner Volume: 215 cc • Exhaust Runner Volume: 175cc • Combustion Chamber Volume: 87 cc • Valve Angle: 14 degrees • Intake Valve Diameter: 2.11 in • Exhaust Valve Diameter: 1.66 in • Seat Angle: Exhaust 45 deg/Intake 45 deg • Guide Plates Included: Yes • Guide Plate Material: Hardened Steel • Rocker stud diameter: 7/16"