70 c10 with a Borg Warner

[jasling]

Hey there, I am fairly new to tranny and motor swapping.

I currently have a 93 454 Chev 4 bolt main in my 70 c10. It has a th350 behind it, and I can tell already it can't handle the torque (after 1000km). I bought a borg warner super t10, tail casting # 1304066903. From what I have found, this from 1977. I was told it came from a 455 trans am.

It came with a hurst competition shifter, and a bell housing. How will I know if the bell housing will fit? Any other parts I will need to bolt up?

Thanks for your help!

[5150.4.67]

Small block and big block use the same bellhousing. A 621 bellhousing will work, it might be fun to find a used one however...

[clay68c10]

If it is a BOP bell housing, it won't bolt up to your 454. Chevy has a different bolt pattern on the block.
But, you should be able to sell the BOP pattern bell for the same or more than what a used Chevy bell will run.

BOP = Buick Olds Pontiac (and Cadillac)

[James the III]

Originally Posted by jasling

Hey there, I am fairly new to tranny and motor swapping.

I currently have a 93 454 Chev 4 bolt main in my 70 c10. It has a th350 behind it, and I can tell already it can't handle the torque (after 1000km). I bought a borg warner super t10, tail casting # 1304066903. From what I have found, this from 1977. I was told it came from a 455 trans am.

It came with a hurst competition shifter, and a bell housing. How will I know if the bell housing will fit? Any other parts I will need to bolt up?

Thanks for your help!

No 77 t/a came with a 455..
So, I'd check what bellhousing you have and not ASSUME what you where told it came from is correct..
It still might have the B.P.O. bolt pattern, if it was from a 77 t/a as they came with 400's and a stick..
but I'd check what you got..

[jasling]

hey guys, thanks for your help

The only serial # I can find on the bell housing is on the clutch fork. 14066235

[geezer#99]

Here's a link on the way to tell what bell you have.
https://www.teambuick.com/reference/ident_automatic.php

[jasling]

Okay, so it is a BOP bellhousing. I could either sell it and look for another chevy one, or use an adapter?

Any downside to the adapter?

Will the bellhousing from a th350 work with the trans? I currently have a th350 in the truck.

[ratty69]

Originally Posted by jasling

Okay, so it is a BOP bellhousing. I could either sell it and look for another chevy one, or use an adapter?

Any downside to the adapter?

Will the bellhousing from a th350 work with the trans? I currently have a th350 in the truck.

Chevy bellhousings are a dime a dozen compared to BOP bellhousings - you should have no trouble selling or trading it.

The th350 bellhousing is not removable - cast as part of the transmission case.