@bigbadswingdaddy, You were the one who convinced me to go with a heavier tranny than the T-5 for my 3/4 T panel, so I started reading on line, too. I had a step up on you though, since I'd already done a BUNCH of bellhousing research. It will be Spring before I do the swap into my '69, but to hold you for now, check the part numbers on available bellhousings from 1991 through 1993. If you find even 1 number with the 5 1/8" hole the same through those years then it'll work. All sbc (including V-6) fit the same bellhousing bolt pattern through the mid 1990s, thus they all fit the modern inline 6s as well. The SM465 was used from 1968 through 1992, so if an SM465 fits so will the early ('93-'94 only) NV4500! I meant you NO disrespect but I'm staying pure Chevrolet so things pretty much have to fit. I'll be able to order a stock clutch pack for my model year, too, because the early NV4500 that I have has a 10 spline shaft!
best wishes,
Les
