The 5.7's and SRT versions I know had different programming but I think they had different converters to. At any rate they all share the same foundation and can be built into a really stout trans that has really good lock up converters available. If I had a cool C-body I would love to see a 5.7 Hemi with a pair of 70mm turboes with one of these trans behind it and an 8 3/4 with some 3.23's, it would be a barrel of laughs.