Can you ID this Mopar gearbox?
I guess I didn't say that very well....lol. I was talking about your current bellhousing. I do not know for certain if 70's slant 6 bellhousings have dual bolt patterns for an A230 and an 833. I do know that every 70's Mopar LA car bellhousing that I have ever seen had both bolt patterns. I have never personally had an A230 transmission. I can only assume that the bolt patterns are different between and A230 and an 833, or the factory would not have made the Small block motor car bellhousings with 2 patterns. I'd say it was cheaper for them to have a bellhousing that would fit both transmissions than it would have been to produce and inventory separate ones. If you are able to safely jack your Demon up and can get under it to look at where your A230 bolts to the bellhousing, you may be able to see if there are other bolt holes near the holes the A230 is bolted into. I'll try to add some pics of a small block bellhousing I have out in the garage so it might make more sense. :)