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View Full Version : on 572 bbc, raising the comp from 9.7-1 to 11.7-1, hp incre


badbug3
06-05-2007, 09:05 PM
what would increasing the compression ratio from 9.7-1 to 11.7-1, or around 2 comp points higher, do for hp increase. Just how much difference would it make ?

billhendren
06-06-2007, 05:22 AM
It would raise the torque quite a bit allowing you to use a larger cam which would add a substantial amount of power,to know the exact amount would require before and after dyno runs.Bill