Combustion Chamber Size with Blower

wido78 · Dec 8, 2003

I am performing a 331 rebuild and will be purchasing new heads at the same time. I currently have GT40 Iron heads, but want to get new aluminum heads.

Considering I will be going with a 331 combustion chamber size should I go with for a proper Compression Ratio for a blower at 10psi?

I assume I should also get "blower" or dished pistons, is that correct?

matm347 · Dec 8, 2003

For 10PSI I would get the combustion/piston combo that would yield a 9.5-10.0:1 compression ratio, this will still allow you to have decent drive ability around town and get the power to come in a bit sooner than with a lower compression/higher boost combo.

wido78 · Dec 8, 2003

Thanks for the info. I also forgot to mention that this is not a daily driver that will see most of its time at the track.

Do you have any idea which combo may work best, or how to figure compression ratio?

Combustion Chamber Size with Blower

wido78

matm347

wido78

Similar threads

Privacy & Transparency

Privacy & Transparency