454 in a 4wd

[b454rat]

I remember a post about putting a BBC in a 60-66 4wd, but i did a search and couldn't find it. I think I remember that the motor has to go forward about an inch. I already have the 73-87 style crossmember, and the 465/205 with the crossmember. Gonna use headers for the 73-87 style truck as well. Anything else that I should be aware of?? Figures that I start this just in time for the cold weather and snow.....and trying to do this in a mud driveway....