Originally Posted by Blusmbl
Originally Posted by DaveRS23
Do the math on the Gear Vendors OD before you pull the trigger. It is not enough OD ratio for some guys. The 518s have an OD ration of .69:1. The GV has .78:1.


Agreed, I've seen a few people complain that it isn't a ton of overdrive. It isn't like a 0.5 OD like on a T56.

It would be cool to build a lockup style 727 with a GV or a 518, but I don't know how much power they can take. It seems that past 1000-ish it is not common to stick with a Mopar based trans.


If you use the right parts a 727 based trans will be fine at 1000HP, look at the Cummins powered rams making more HP than that , and the torque is even more than a gas engine . If you build the OD unit to Diesel specs you should be fine, the issue you may have is getting a lockup performance convertor for a gas engine in the stall you want? But they are making them for turbo 400 racers so there must be something available ?

running up my post count some more .