Long story short my 83 5mge engine is seized, I have a 85 donor car I'm about to get. What parts from the 85 will I need to use instead of the 83 such as the wiring harness, vacuum lines, and ecu? Will the engine hook straight to the transmission or will I have to modify it to make it work? And if you really want to know it was my fault it seized and now I am going to spend the time and money to fix what I broke and to get my car running again. I would appreciate the help.