Hemi Swap 2014 5.7 VVT

From what I have read the only reason the Mopar set up won't work with earlier hemis is the number of teeth on the crankshaft tone ring. If that is changed out to the appropriate number of teeth then I don't see why it wouldn't then work. I agree with MopaR&D that any differences between the truck and car engines should be able to be addressed through tuning. I would contact some of the Gen 3 hemi specialty shops to confirm or deny this:
MMX Modern Muscle Xtreme
shopHEMI.com
https://www.highhorseperformance.com/