A833 NP A body trans ID help & intro.

Been missing for a while due to getting hit by a semi rolling about 90 on i10 interstate in Arizona 3 years ago. Concussion, neck injury, and reconstructive surgery to arm and shoulder. Lots of painful physical therapy but happy to get to 85%. While taking my 833 apart I discovered that someone dropped the the trans and on the bottom is a spider crack silver dollar size. Found a aluminum OD case and tail housing that was converted to 307 main bearing. Looks to be excellent machine work and I didn't pay much for it. Hopefully all my regular 833 internals will drop in. Anybody here seen a conversion like this? Strength wise, do you think this will handle the 360 # 5302006 block "roller"

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View attachment 1716081636 I'm building into a 408???

I'm curious to know this as well. I've read some threads here where some folks say you'll definitely blow it up, while others say you'll be fine as long as you bush the countershaft bore and keep it on the street.

Hopefully we can get some knowledgeable people to chime in here.