How to ID a 5.7 engine

I've got an '06 Charger at work that dropped a seat at 72,000 miles and I know of some through '08 that have lost some at other agencies. My regional service guy assured me they fixed the problem with the '09 up Eagles or I was going to stop buying them.
not related to this post but was wanting to know if you still have the sbp monocque front wheels