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oldcarguy

O

oldcarguy

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Just scored a 1973 455
4 barrel motor from a grandville. My 1976 350 has big valve heads on it with 94 cc combustion chambers. If I put the 76 heads on the 454 it should raise the compression ratio by over a point. Has anyone done this? Is it worth the effort?
 
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Hopefully you mean a 455, the 454 is a Chevrolet engine.
According to this calculator going from a 112cc head to a 94 cc will raise the compression to over 10:1. Your call if you want to go that high.

http://www.wallaceracing.com/cr_test2.php
 
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