727???'s

Both are correct.Here is the facts,the small block 727 bell housings top bolts are 7 3/4 apart and have 2 inspection cover mounting holes.The big block 727 bell housing bolts are 6 7/16 apart and has 4 inspection cover bolts.The BB727 has a smooth line from the bottom of the tranny to the starter,the SB 727 has a small indentation and it is not a smooth line from the bottom to the starter location.if you have any other tranny question,just ask,Mrmopartech