NV4500 bellhousing for 6.2?

[79Vette]

I am looking into putting a TR4050 or NV4500 into my 1009, which currently has a SM465. The thread below has a great table of parts used, but its been a few years and the links are not working

NV4500 Swap into Stock 6.2 Diesel / TH400 / NP208 M1028/M1008 - COMPLETED

***BACKGROUND*** Before I began this escapade, I read practically every forum and post regarding swapping the NV4500 into the Chevy squarebody trucks. None I found were very comprehensive or straight forward and most were a lot of heresay about what fits and what doesn't. So I want to leave this...

www.steelsoldiers.com

The Advanced Adapters 712576 bellhousing from the table is this unit, but I can't tell from the photos if it has the large starter pocket or not. I tried buying a SBC bellhousing from advanced adapters when I did my SM465 swap and I couldn't get one that fit over the starter. Or maybe there's a 24V starter with a smaller nose that would fit in the regular SBC bellhousing?
I'm curious what bellhousing/starter combo folks on here are running with your NV4500 or TR4050. That's the last piece of the puzzle I need to figure out, and I'll hopefully be ready to dive into this in a couple months once I wrap up my current project car.

NV4500-1996 GM BHSG ADAPT.KIT

buy NV4500-1996 GM BHSG ADAPT.KIT online

www.advanceadapters.com

 

[Skinny]

Not sure about the TR4050 but since the 6.2 came with an NV4500 attached to it from GM at some point why not source one from car-part.com or a part out listing on marketplace.

I run into a lot of 90s heavy duty series trucks with junk 6.5s and many are manuals.

 

[79Vette]

My current bellhousing is bent, and I didn't notice when I installed it. I adjusted the circular runout with dowel pins, but the bellhousing isn't parallel to the block face. This has put a bunch of preload on the input shaft of my Ranger gear splitter and ruined the input shaft and mainshaft where the 2 come together. I've had the drivetrain in and out four times in the last 5 years chasing my tail with this problem (progressively increasing noise as the shafts and bearings destroyed themselves) before I finally figured it out, but it's too late and the shafts have been ruined.

Unfortunately, advanced adapters discontinued the ranger splitter shortly after I bought it (2018 or so) and parts are not available. I already have an overdrive manual transmission drivetrain that I really like (twin stick shifting is awesome!), but the whole setup has basically been ruined by using a bad bell housing. Since I can't fix the ranger there's not another good solution for keeping overdrive with my sm465, so I'm looking into a NV4500 or tr4050 swap.

With the amount of money either is going to cost, I'd prefer to go with a new known good bellhousing. I know to check parallelism as well as run-out now, but I'm really hesitant to go buy another used bellhousing and then just end up with problems where I have to buy a new one anyway. If I hadn't been so cheap and gone with a used one 6 years ago I'd still have a running truck today, but instead I'm looking at a 5-8k drivetrain swap (4500 or 4050, ORD Magnum doubler, new custom driveshafts, clutch and bellhousing, shifters...) and all my labor to install it