Mopar Performance has been in the aluminum head market for quite a few years now with their Stage VI variations, which deliver the one-two punch of more power and lighter weight. The Stage VI heads ...
I have a 1971 Chevelle SS that I bought new. It is a 402 big-block, four-speed car with 3.31:1 gears and is stock. I want to freshen the engine up by increasing the compression ratio from 8.5:1 to ...
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