Milling heads
#1
Senior User
Thread Starter
Join Date: Aug 2016
Posts: 115

Milling heads
Hey all, with the potential of some internal engine work, it got me thinking about increasing some performance while I'm at it.
Has anyone milled their 2v PI head to raise the compression slightly? I haven't done the research to know the current compression.
I know it will have to be tuned but that is not a problem.
Just wondering if anyone has been down this path yet.
Has anyone milled their 2v PI head to raise the compression slightly? I haven't done the research to know the current compression.
I know it will have to be tuned but that is not a problem.
Just wondering if anyone has been down this path yet.
#2
#3
Elder User
Join Date: Apr 2006
Location: NAMPA, ID.
Posts: 887

#4
Senior User
Thread Starter
Join Date: Aug 2016
Posts: 115

#5
Milling for compression is a mistake though. On overhead cam motors milling causes timing issues unless thicker head gaskets are used, which defeats milling for compression.
Milling to fix issues can be done as long as the head still meets certain tolerances. One of which is adding a thicker head gasket to make up for loss of head thickness. Something I bet most remanufactured motors don't have.
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