Check out CPT California Performance Transmissions,Art Carr builds 200-4r trannies for GN Turbo cars. The newest issue of CHP has an article on some of the mods that they do to make them hold up to some real power. They do a 400 to 200-4r swap into a 396 chevelle. I've got two that I plan to build with their parts,one is a cheby case the other is a uni-case.

Greg
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Greg
1969 Firebird/400/th400/3.42:1 rear
1/4=? MPH=? (WIP)
1983 1/2 ton Silverado/lwb/305 (89 FB)/
MSD ign/Mallery coil/83 intake/
700-r4(rebuilt w/shift kit and corvette servo)/
3.73 gears/31x10x15 all terrains.
10.9 1/8 mile. 17.xx 1/4 mile
1996 C2500/6.5L TD/4L80e(shift improved),4" exhaust
cold air intake, mechanical WG controller
3.73 gears/265-75-16 w/Eagle allows.
2002 1500 Suburban/stock
1986 Fiero GT,needs engine.
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