And in case you were so inclined to use/want, the 465 bellhousing has been used on the early GM NV4500's as well (with minor mods to the 4500), if you happen to have one of those lying around in your shed as well. 
Saves a lot of money over the various bellhousing adapter setups out there.

Saves a lot of money over the various bellhousing adapter setups out there.