[Mike Simard]

For the stock Alum bellhousing:

4 ea 7/16-14 x 2
2ea 7/16-14 x 1-1/2

I used studs, it makes in car engine to tranny mating a little easier

Wait, you meant bellhousing to tranny, they're 7/16-14 x 1-1/2 grade 8 or better.