ProMaxx Performance 9225A: 225 Series Aluminum Cylinder Heads Small Block Chevy
225 Series Intake Port Volume
225 Series Aluminum Cylinder Heads Small Block Chevy 100% CNC Ported 225cc Intake Ports 64cc Combustion Chamber 2.08'' Intake / 1.60'' Exhaust Valves 3/8'' Rocker Arm Studs .600" Max Lift Steel Retainers Assembled, 2/pkg