Edelbrock Cylinder Head Pontiac Performer RPM CNC Chamber 72cc Bare Single

Designed for street high performance use, and are interchangeable with original equipment cylinder heads. These heads retain an exhaust crossover passage and are street legal replacement parts. Cylinder Head; Pontiac; Performer RPM; CNC Chamber; 72cc; Bare; Single Edelbrock Carburetor Step-Up Spring Assortment (5 pair). Pontiac:-:326 (5.3L)/350 (5.7L)/389 (6.4L)/400 (6.6L)/421 (6.9L)/428 (7.0L)/455 (7.4)