Bigger valves

Started by GPChief, August 20, 2014, 10:44:55 PM

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GPChief

Has anyone ever put the 3400 valves in our 3.1 heads? (1.42 & 1.72 vs 1.42  & 1.76)? 
2004 GTP -  3.8 Blown - Only modding for MPG.
1997 GTP  - 3.8 Blown - Too many mods to list.
1996 GTP - 3.4 DOHC - Twin to my 1997.
1995 SE - soon to be a 3.8 turbo car.
1990 TSTE x 2 white cloth
1990 TSTE x 1 maroon leather
1990 TGP - 5 speed.