Edelbrock NHRA Approved Performer RPM Cylinder Head - Assembled - 2.020 / 1.600 in Valve - 171 cc Intake - 63 cc Chamber - 1.460 in Springs - Small Block Mopar PowerBond Harmonic Balancers only the input mesh gear

only the input mesh gear is spinning when the transmission is in Direct Drive

Extra-deep belt grooves provide added belt retention during rapid changes in engine RPM

Air hose kit makes it easy to pressurize the cylinder to hold the valve closed when changing a valve spring

1976-1980 Chevrolet C10 Cheyenne CID 400 Naturally Aspirated GAS

The kit includes two Aluminum Pivot Screws with integral Pivot Washers

Edelbrock NHRA Approved Performer RPM Cylinder Head - Assembled - 2.020 / 1.600 in Valve - 171 cc Intake - 63 cc Chamber - 1.460 in Springs - Small Block Mopar PowerBond Harmonic Balancers only the input mesh gearDirect bolt on heads for 1961 76 390 427 428 Ford Stock and Super Stock racers. No port profiling or bowl blending of ports. Engraved with the NHRA Logo on both ends. Number 60087 is sized for 2. 09in. 1. 66in. valves for 427 low riser applications. Edelbrock, 340 Chrysler, Hydraulic Roller Cam, V8, Cylinder Heads, 60179, Flat Tappet Make 417 horsepower and 397 ft lbs. of torque on pump gas with an Edelbrock Performer RPM intake manifold and matching