What would it cost to have someone over where you are to have a 722.3 modified for high hp?

Would an S600 transmission be a direct swap? There is one locally on Ebay:
http://cgi.ebay.com/ebaymotors/MERCEDES ... ccessories

It has 140K Miles and is from a 1992 W124 S600 V12.

Thanks so much! I have posted information all over US forums without getting any REAL info.

Correct, but with internal components from a 722.6, it should handle abouy 785nm. I just need to determine if this is possible. I've only "heard" that it can be done.

I am looking to bolt something up directly. My goals are only 250-275hp. Would a TH-400 bolt right up? Modulator valve?

I am looking to rebuild my transmission in my 1987 300TDT (US) with om603. I am in the process of increasing power by installing larger Turbo, Euro Exhaust Manifold, 3" exhaust, intercooler, and modified Pump. My transmission/gearbox is in need of a rebuild and I need it to be able to handle mo...