wow............. that is going to be a long motor to put in there..
It's pretty long, I tried to talk him into a bbc/400/205, but he wouldn't go that way, he wanted the injection and a light motor. We're adding a SYE to the transfer case, and streaching the rear about 5" to get a longer rear driveline, it's about 3' now. we cut out the front radiator shroud so we can fit a mustang radiator in it.
A 4.0L is light? I thought they were a little porky.