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P.I Heads ? [Archive] - StangBangerz Forums
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highmileage4.6
12-20-2009, 11:31 AM
So been meaning to ask how can you tell P.I. heads from the normail 4.6 heads ? certain casting mark ? was thinking about looking into getting a set in the future and wasnt for sure how to tell the diffrence
cstreu1026
12-20-2009, 12:04 PM
Some but not all have PI cast in them. You can also tell by the size and shape of the intake port.