Shaved Heads
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Senior Member
Joined: Dec 2003
Posts: 758
Likes: 1
From: Ontario, Canada
Car: 1988 Pontiac Trans Am
Engine: 5.0L Fuel Injection
Transmission: Automatic 4speed /w OVerdrive
Shaved Heads
Hey all,
When I had my new to me tpi heads in at the machine shop they said they ported and polished them and then shaved them. Exactly what do they mean by shaving them and what does that do to my car?
When I had my new to me tpi heads in at the machine shop they said they ported and polished them and then shaved them. Exactly what do they mean by shaving them and what does that do to my car?
Supreme Member
Joined: Jan 2002
Posts: 3,852
Likes: 1
From: Valley of the Sun
Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
They milled the deck surface of the heads, to clean them up. It will raise the compression depending upon how much they milled.
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