a833od behind 383

Well I've read on bigblockdart that it has been done I'm trying to figure out if i have the correct bellhousing or need to have this one machined to work

If you need to have the hole opened up, just make note that you will have to figure something out with the clutch fork as it will not have the throw out bearing centered. The OD bellhousing has a different fork mount placement and requires a different fork. You may have to experiment around with different forks to get the right one, or even modify one to work. Pretty easy to work around though.