I believe that GM converters are roughly .700" wider thru the cross section front to back. So the shape may be different. That may be why there isn't a huge data base for very high power Mopar trans converters.
Doug
Would be one of the reasons that ProFlite transmissions run a GM converter. Pro Trans make a Powerglide splined input shaft and stator support, and adapter plate to make the bellhousing deeper.
Some purists want to stay with a A727, so much so, a friend asked me if I would make him a billet A727 case.
