task force trucks came factory with v8 motors, the first gm trucks to be so equipped
the I6 bell housing won't work, if you can find a v8 bellhousing with the side mounts it is an easy bolt-in swap
switching to an automatic is a whole different ball game and will need new motor mounts and trans x-member fabricated
easy peasy, i've done it a few times, just be aware that it is not a bolt-in swap like the manual
look for the V8 bellhousing off of 55-59 chevy trucks and 55-57 chevy cars
there are a few more options, just can't think of them off the top of my head
