The Edelbrock #5073 E-Street cylinder heads are designed for use with 1955-1986 Small-Block Chevy applications. The Edelbrock E-Street cylinder heads offer American made quality and affordable performance. E-Street cylinder heads feature as-cast ports and Product Features:Complete Pair For Hydraulic Flat Tappet70cc Combustion Chamber Volume2.02cc Intake/60cc Exhaust Runner Volume2.02 in. Intake/1.6 in. Exhaust Valve Diameter0.562 in. Deck Thickness
