gt 40 head questions

blk92

New Member
Jan 22, 2004
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I have a set of gt 40 heads that have been stg 2 ported intake and exhaust and i was wondering if i can get bigger valves for them i was thinkin 1.94 and 1.60 or 2.02 valves will the valves fit these heads or will i have to stay with the stock valves.
 
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