I have an 03 qc 2500 with a 5.7. She has 193,000 and is ready for a change. I have been looking at the 6.4 392 520hp but a friend of mine mentioned the V10. Are there any mods that have to be done for the swap or will all bolt up (motor, tranny). going to make a change soon, so if you guys have any good info please let me know.