Hey guys, I think I am going to buy a tranny from my friend. It is a 700R4, and the internals are built (not sure on the specifics, but I will find out before I fork over the money) it also has Transgo shift kit in it. It comes with a 9" converter, not sure on the exact stall speed...but...

I know motors with different amounts of power will stall the converter at different RPM's. For example my 300hp motor might only stall it at 2800rpm, where as if I had 450hp... it might stall at 3500rpm.

Will the 9" converter be too much ???

PS- I have 2.73 posi, and I beleive it is a lockup converter. But I will have to double check on that.

A 9" is a good but what you really need to figure out is what brand and stall, thats what really matters. There really isn't such a thing as a 9" being too much. The smaller the converter the better to a point. 9" are much better then 12" converters (which come stock), they put less shock on the drivetrain and have less rotating mass.

Thanks bud, I'll hafta find out what the rated stall speed is.