318 rebuild suggestions

Often you will find a few members here like myself suggest what many think is a small cam for cruisers and mild hot rod builds that retain the stock pistons. The reality of it all is the 318 suffers from low compression, not over all cubic inch displacement, thou it is on the short end of that stick.

Cam durations (@.050) greater than 220 will hurt the performance of the engine & car unless you start in with loose converters and higher gear ratios than your probably looking for. Keeping cam duration at a max of 218, which doesn't require a higher stall converter will enable good power on low compression engines. I would also suggest at least a 3.21/3.23 gear ratio and no more than a 26 inch tire. Going beyond th above perameters is not advised.

The above parts will make a good cruiser with decent mileage. Upgrading to a higher level of performance without a piston change will be milled heads & larger valves as well as mild port work. (Headers assumed as part of the upgraded if not yet inculded)

If you for go milled heads, a supercharger is an excellent idea that will still work with everything else as is. And even better with larger valves and port work. But do not mill the heads with the addition of the supercharger. Just a deck cut to make the heads flat is all that is needed at max.