As I understand it, it may be possible to physically transplant the LS1 and trans, but getting it to run, and drive, whilst playing nice with all the other benz computers is where the problem lies. I'm sure somebody more versed will correct me if I'm wrong, but only because of several, extremely educated members here on this board was it possible to transplant a Benz v8, and get it to play nice. There were a couple of pioneers who forged the way through untold problems to make it happen. Some one has also swapped a Chrysler Hemi v8 into a Crossfire by utilizing the whole front crossmember from the donor, but how (and even if) all the other functions work is not known. To cut a long story short, best of luck if you attempt it, but you're basically on your own ..............