Hey guys new to this forum, my brother has a 2005 SE with the Vulcan motor. Its having issues that I'm trying to trouble shoot but may be looking at new transmission and or engine as it is not running correct at all. Now I have sources to pick up the DOHC motor/transmission for a very good price what all is needed to swap from the Vulcan to the DOHC motor? Engine harness, PCM I'm thinking at least not sure if exhaust needs to be changed or engine cradle. Point me in a direction guys.