Gringing (?) TPI heads
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Joined: Jan 2008
Posts: 547
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From: Europe->Poland->Warsaw
Car: 1988 Pontiac Firebird
Engine: 305 LT1 intake&heads
Transmission: TH700r4
Axle/Gears: 3.73 10bolt GM
Gringing (?) TPI heads
Hello,
As my english is not that good i'm not sure if gringing is proper word, but what i want to ask is how much can be removed from head surface of stock TPI heads (305 and 350 engine), we want to get more compression on engine with stock pistons and heads so grinding (or however it should be callsed) is the easest way
can anybody give me numbers how much to remove ??
best regards
As my english is not that good i'm not sure if gringing is proper word, but what i want to ask is how much can be removed from head surface of stock TPI heads (305 and 350 engine), we want to get more compression on engine with stock pistons and heads so grinding (or however it should be callsed) is the easest way
can anybody give me numbers how much to remove ??
best regards
Supreme Member
Joined: Jan 2009
Posts: 2,316
Likes: 116
From: belle fourche,s.d.
Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: Gringing (?) TPI heads
In the u.s.,that modification is known as "milling the
heads"-I am not sure how much can be milled off
before there is a danger of hot spots forming or
distortion of the head surface.
Stock heads do benefit,airflow wise,from a good porting
job-really helped on my car
heads"-I am not sure how much can be milled off
before there is a danger of hot spots forming or
distortion of the head surface.
Stock heads do benefit,airflow wise,from a good porting
job-really helped on my car
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