What can I expect from headporting?
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rough rule of thumb.
1 point of compression ratio increase, all other things being the same, will raise HP 2 HP per cilender.
So a late model at 9.5cr to 10.5cr yields 4 HP.
Rarely do folks do only CR increase onle. Just not labor and cost effective.
But, IMO, the HC pistons can be in the way of getting the most from the heads. For the street. Must take care with these.
1 point of compression ratio increase, all other things being the same, will raise HP 2 HP per cilender.
So a late model at 9.5cr to 10.5cr yields 4 HP.
Rarely do folks do only CR increase onle. Just not labor and cost effective.
But, IMO, the HC pistons can be in the way of getting the most from the heads. For the street. Must take care with these.
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