Re: Compression Check

Posted by Jack Vines On 2014/9/16 14:36:46

Good real world data, Joe.

FWIW, those who look at the '55 specifications will find the cranking compression at 120 PSI @ 150 RPMs. Easy to forget there were very low compression '55s and very high compression '56s. Most rebuilt broken-in 374"s will crank 195 PSI and ping on pump premium.

jack vines