The Edelbrock #60455 Performer RPM O-Port cylinder head is designed for Big-Block Chevy applications. The Edelbrock #60455 Performer RPM head is perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance Product Features:Complete Single For Hydraulic Roller110cc Combustion Chamber Volume290cc Intake/110cc Exhaust Runner Volume2.19 in. Intake/1.88 in. Exhaust Valve Diameter0.562 in. Deck Thickness
