Head milling

CMac89

Registered User
Has anyone ever noticed any significance power gains by milling the heads on the compression side?

I was thinking that is part of the reason why i am running 13-14 psi with a stock pulley on a late model blower with exhaust.

I could run a compression check to estimate the compression ratio.
What should the stock compression be in terms of psi?

Casey
 
do not do it

CMac89 said:
Has anyone ever noticed any significance power gains by milling the heads on the compression side?

I was thinking that is part of the reason why i am running 13-14 psi with a stock pulley on a late model blower with exhaust.

I could run a compression check to estimate the compression ratio.
What should the stock compression be in terms of psi?

Casey
heads are thicker to hold up under high compression..just true them up...if going to a 3.8 na you could take .060.
 
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