How much will compression change on 58cc

[satan jamez]

Going to a 58 cc head and still using a stock bottom end. I just would like to know roughly so I can better figure out my cam choice. I know there is a compression calculator, but it requires values that I don't know like deck height and piston cc's. I keep reading on how every motor is different, but surley not by much. If everything was the same except the head swap my compression would be?

[Goober]

On a 5.0, your deck height is 8".

[331TwistedWedge]

i would guess around 9.75:1 - stock is 9.0:1 ... you will get just under a point ...

[satan jamez]

i would guess around 9.75:1 - stock is 9.0:1 ... you will get just under a point ...

Thank you :)