Edelbrock Performer RPM Cylinder Head - Assembled - 2.190 / 1.880 in Valve - 290 cc Intake - 110 cc Chamber - 1.550 in Springs - Big Block Chevy USB-BAT-RH It's designed to fit with

It's designed to fit with the stock intake manifold

Improved design for street/strip applications

200R4 or 4L60-4L70 transmission using a stock 1968-72 Chevelle transmission crossmember

1979-1990 GMC C2500

Edelbrock Performer RPM Cylinder Head - Assembled - 2.190 / 1.880 in Valve - 290 cc Intake - 110 cc Chamber - 1.550 in Springs - Big Block Chevy USB-BAT-RH It's designed to fit withDirect 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, BBC, Big Block Chevy,454, 396, 402, V8, Cylinder Heads, 60459, Flat Tappet Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3 4" reach with flat gasket seat. These oval port