Thread: GN1-R's, Ported & Unported stock heads.
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Old September 3rd, 2007, 03:30 PM
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Turbo1dr Turbo1dr is offline
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Quote:
Originally Posted by turbolou View Post
I'm trying to visualize that, I assume your using a gasket as a pattern. Is there enough material to work with & have you been able to measure how much improvement if it's worth the effort
GN1-R heads on a 3.8L engine.
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