Edelbrock 60739 Performer RPM Cylinder Head for Small Block Chevy – 185cc Runner 70cc Chamber
- 1986 & Earlier Small Block Chevy 302-400ci
- Valve Springs for Hydraulic Flat Tappet
- Port Volumes: 195cc/65cc
- Combustion Chamber size: 70cc
Designed for non-emissions 302, 327, 350 and 400 c.i.d. engines up to 1986, these heads made 420 horsepower with the Performer RPM Power Package for small-block Chevys. Hardened pushrods are required.
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These Edelbrock Performer RPM aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability. They also feature hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. They offer improved power throughout the rpm range for greater throttle response and top-end horsepower.