I would like to know how to calculate compression ratio. My engine is a standard bore/stroke 1967 327using stock cast flat head aluminum alloy, 4 dimple pistons. My heads are stock '461 castings with a combustion chamber of reportably 62.076 cc's.
The AMA specs rate the 327/275 at 10.0:1. This engine originally had the '462 head which also has the 62.076 cc. Is this a valid compression ratio? What is the formula for calculating compression ratio? What octane gas do I need to keep from detonation?
thanks
The AMA specs rate the 327/275 at 10.0:1. This engine originally had the '462 head which also has the 62.076 cc. Is this a valid compression ratio? What is the formula for calculating compression ratio? What octane gas do I need to keep from detonation?
thanks