Some people have no sense of humor. Anyways.............man it is preference. I work at a Dodge dealership in their shop and I have come across a lot of material selling dealer performance parts for the 3.9. The parts are out there but they unfortunately do have a price. A 360 is probly the easy option but if you want to be able to say you built something different go for the 3.9. If I think about it I'll get some mopar numbers for you Monday.