A 350 Chevy with Keith Black 474-120 flat top pistons and 76cc heads yields approximately 8.9 to 1 compression. Bolt on the 64cc heads and you are up to 10.2 to 1.
Now bolt on the 50cc heads and it jumps to 12.04 to 1. For those of you with rules that mandate a flat top piston, these heads will give you the compression you need to be a winner!
You know how much you can spend having a set of heads and intake angles milled. These heads are ready for our valves and springs and you don't need to modify the intake to use them!
NOTE: Bare heads priced each, complete heads priced in pairs.
Spark plug use: 14 mm-5/8",
.480 reach plugs, taper shaft
NOT FOR STREET USE
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