Transfer of engines
I think you will have smog issues with the old engine in the new car.
I don't know about that, but where are you located? And would you be interested in selling it?
Not if it is a magnum such as their 5.9L it will not bolt up and you will have to do some fab work and it may not even be worth it in the end.
Looking for a Used Durango in your area?
CarGurus has 23,201 nationwide Durango listings starting at $1,100.
Search Dodge Durango Questions
Dodge Durango Experts