Bellhousing issue

Check the starter location on your new bell. If it is roughly at 11:00, you have a /6 bell housing. If the starter is in roughly the same position as your 318, but won't bolt to the block and seems slightly larger, you have a big block bell housing. Since the tranny bolts don't line up, I'm guessing you have either a /6 3 speed bell or a big block granny 4 speed bell out of a truck. Hope this helps.