Factory Small Block Heads

Didn't Pontiac make a 4 cylinder by cutting a 389 in half? I watched a guy race one of the 4 cylinder Pontiacs. One head, One header, just a V8 missing a bank LOL. It had gone into the 11's too

Mopar Performance A4 Aluminum Engine Block Fits W8, W9 or W9RP Cylinder Head​


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