I have an '87 MH600 with a 350 and 12 speed trans. She is a great pulling, comfortable truck. It has done a heck of a job for me for 15 years. The problem is that the work that I do requires me to have a '94 or newer truck or engine. I really don't want to part with her. How involed would it be to put in an E7-427? I called Mawk industries about a wiring harness and they just make them for Cats,cummins and Detroits. I have about 10-12 grand to play with. What would be involved? Would an E7 match up to my 12 spd? Is it worth it financially? I make my living driving so on the one hand I might have to buy something newer, but My MH is such a good reliable truck, I hate to get rid of her. Thanks, Mike
