I just checked my garage and the swap can be done. I went the other way and put an srt motor in my manual limited. The flywheel is a problem, but nothing that an hour on the mill didn't fix. The biggest problem is the mb pcu. The stock program can not be adjusted to eliminate the auto trans. This means that without the signal from the auto the pcu will never engage the supercharger clutch and you run a low compression n/a motor. To solve this you need to find someone who not only has the ability to manipulate mb computers but also has a beta program for the 3.2.