transmission swap

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MrHarley123

Not-quite-so-new-guy
Nov 29, 2007
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Hey guys I am very happy to see that I am not the only lover of the 79 gp. My question is about swapping out a th350 transmission for a 200 or 700r4. Which transmission is the best choice and whick is a more difficult swap.
 
they are really about the same difficulty to swap. i would go with the 200-r4 because it can be built to take just as much, if not more, power than a 700. also the 200 is a close ratio trans, resulting in better OVERALL acceleration. yes the 700 has a .81 higher ratio first gear but when it shifts to second you are now below the torque band giving less acceleration. also, except for a few corvette units the 700 will not go to overdrive in WOT, the 200 will. not that you'll need that too often. just make sure that you get a 86 or newer 200-r4 (if getting a used one) as they have the upgrades and fixes already in them.
 
Another vote for the 200 here. Ive been considering an upgraded 200 for my olds. Definately a little better on the street than the 350 thats in it now. Good luck
 
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