This is just a guess, but I think that a hemi has the same bolt pattern as the v10 viper motor. I am sure that the viper T56 bellhousing would bolt up. Also go to
www.hotrodlane.cc and check out where they put a Hemi in a challenger I think with a sheetmetal intake and it was fuel injected, but I cannot remember what transmission they were using.
Payton