PI head non pi head valve lift question..
07-25-2008, 12:18 PM
#2
5th Gear Member
Join Date: Nov 2005
Location: MN
Posts: 4,412
RE: PI head non pi head valve lift question..
I believe so yes. If you look at aftermarket cams for both the NPI heads are usually .500 valve lift at .050 duration and the PI are .550
EDIT: but I've also seen PI heads with .600 lift cams as well so I'm not sure what each set up would max out at.
EDIT: but I've also seen PI heads with .600 lift cams as well so I'm not sure what each set up would max out at.
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