The main engine harness should come with the motor. Basically unhook the computer harness, misc grounds and the starter lead and you're good to go less the various misc plug in leads such as O2 sensors and the like that will need unhooked.

Rick

Owner of 00 #1611 Silver (Totalled) 98.5 T-Red SVT #6180 Buckshot77@msn.com Misc 3L parts for sale