Re: Ping In 359 Engine

Posted by Anthony Pallett On 2014/4/26 22:06:08

The cranking compression and the compression ratio are slightly independent of one another. Cam specs, rod stroke ratio, rod length, combustion chamber design, and probably some things I'm forgetting all play into cranking compression. You can have two 302 ford engines both with 9.1 static compression ratio and depending on the internals the cranking compression could be way off of one another as would their octane requirements.