I've got a santana sitting on the driver and next to it an LT77 box with LT230 T/b on it. The T/b will go on the santana and at a quick glance the bell housings look interchangeable between the two. As the LT77 is also used on the V8 then i would say that the bell housing must be interchangeable.
Don't know if anyone knows any better on here but i may be able to whip the bell housings off and try swap them if you wish?