PI heads?
4th Gear Member
Joined: Sep 2005
Posts: 1,756
From:
RE: PI heads?
You arent answering his question. He wants to know the difference between the two not what years have it. Unfortunately, I can't answer it. I just know they're power improved, but I dont know how they did it. Widened the valves, diff cams, hell if i know.
4th Gear Member
Joined: Jan 2005
Posts: 1,149
From: North Carolina
RE: PI heads?
ORIGINAL: Matts00GT
You arent answering his question. He wants to know the difference between the two not what years have it. Unfortunately, I can't answer it. I just know they're power improved, but I dont know how they did it. Widened the valves, diff cams, hell if i know.
You arent answering his question. He wants to know the difference between the two not what years have it. Unfortunately, I can't answer it. I just know they're power improved, but I dont know how they did it. Widened the valves, diff cams, hell if i know.
5th Gear Member
Joined: Mar 2005
Posts: 3,689
From: Navarre, FL
RE: PI heads?
Ok, his car has the PI heads so he will not benefit from changing his to the same thing. They come on 99-04 Gt's. The 96-98 Gt's do not have PI heads. Unless those PI heads are ported/poished, you got them already.
Thread Starter
2nd Gear Member
Joined: Oct 2005
Posts: 161
RE: PI heads?
so then upgrading the 99-04 heads would be to port and polish them? i understand that polishing smoothes out the valves for better airflow instead of machined coarse metal, so what is porting exactly?
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