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TMASTER · 07-04-2003, 09:11 PM

I dont know a lot about valves, but i do have GT40 heads on my car. The GT40P exhaust valves are slighty smaller than GT40 valves that i know. I dont know about the length though. Are your heads stock built? Could they have been re-done with different valves at some period?
The best thing to do is to find a good machine shop that does head work, they will know whats wrong.

07-04-2003, 09:11 PM	#2
TMASTER Registered Member Join Date: Sep 2002 Location: TEXAS Posts: 161	hmm I dont know a lot about valves, but i do have GT40 heads on my car. The GT40P exhaust valves are slighty smaller than GT40 valves that i know. I dont know about the length though. Are your heads stock built? Could they have been re-done with different valves at some period? The best thing to do is to find a good machine shop that does head work, they will know whats wrong.