Is there any difference between the 547975 BOP bellhousing and the more common 9785581? I would like to finish my 4 speed conversion and have found a 547975 locally but cannot find much info on it online. will it go between muncie and a 400 in a 68 coupe? thxs
The 581 was used from 65-79. Didnt find a listing for the 975. May have earlier listings at home, but only for Pontiac's. Is it for a Buick or Olds? Does it have starter mounting bosses?
