Trans. Upgrades

05Supersmoker

West Texas Diesel Perf.
Joined
Mar 31, 2007
Messages
239
How much hp will the stock clutches in the allison hold? Looking to get around 550 to the rear wheels and was just wondering if just a convertor and valve body upgrade would be fine. The truck will not be sled pulling or on the strip, just a little street racing.
 
Valve body upgrade is not needed. You can go with a transgo kit, and convertor in the 6 speed. In the 5 speed you just put in a Sun Coast III.
 
The 6 speed is stronger than the 5 speed but I don't think it's that strong (but i could be wrong). I'd go with Suncoast stage 4 or 5.
 
May as well go for the stage IV, there is only a couple hundred dollar difference between the III and IV.
 
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