More information is needed to answer this question.
ex 327 ci engine 62 cc 9.62 cr 64 cc 9.4035 cr 58 cc 10.0882 CR
428 ci engine 62 cc 9.62 cr 64 cc 9.4532 cr 58 cc 9.9742 CR
As you can see the smaller engine has a greater change. In each case the
total volume needed for that CR is found, then adjusted and the CR
recalculated.
I have a calculator on my web page that will do this for you.
http://users.erols.com/srweiss/index.html#jcalc
Stan
66 6F HCS wrote:
>
> I have 62cc heads currently and my CR is 9.62:1. If I switch to 64cc heads
> what would my CR be then? 58cc? What's the math?
>
> --
> Scott W.
> '66 HCS Mustang 289
> '68 Ranchero 500 302
> '69 Mustang Sportsroof 351W
> ThunderSnake #57
> http://home.comcast.net/~vanguard92/
