Alright, for you guys thinking of swapping in the new HEMI, check out hotrodlane.cc They have experience with swapping the new HEMI into other vehicles and can supply motor mounts and wiring harness for a swap of this kind. Although, I think that an LS1 would be a better choice than the HEMI. The LS1 is an all aluminum engine that probably weights less than 50lbs more than the factory engine in the crossfire. Check out hinsonsupercars.com, they swap LS1's into 3rd gen Mazda rx7's and keep a perfect 50/50 weight distributuion. Oh yeah, you can get a ls1/t56 20,000 mile package for around $4,000 if you look around. This swap is very probable and fairly straight forward. I would suggest that putting an ls1/t56 into a base crossfire would cost less than buying an srt6. There are also many companies that sell wiring harnesses that will allow the engine to run in the crossfire.