Thread: Cadillac Compression Ratio

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Originally Posted by Maxb49

Is there really anything that can be done to this engine which would produce genuinely respectable performance numbers, by today's standards? According to one source I have read, the 331 shares parts with the 327 chevrolet.

I suspect that the only thing shared by both these motors is that they're both made of cast iron.

If a guy wanted to keep it all Cadillac, he might look into transplanting a '68 to '76 Cadillac 472 or 500 cubic inch motor complete with TH400 auto trans or even adapt a later 700R4 behind the motor for the 4th overdrive gear. Anything and everything is available for these motors, including aluminum cylinder heads.
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