TH350 question

[Charles Stewart]

With my eternal quest for knowledge, I saw (in recent video from Mr. Fazio) that it's possible to have a TH350 with some Mopar much lighter internals parts inside.
It's still a secret or somebody here can share some info or maybe more details on this subject?
Thanks,

[Alan Roehrich]

A couple of companies build light weight internal stuff for the TH350. ProTrans I believe is the one using the Chrysler pieces. I'd ask around about them, see who owns their stuff. Coan makes an XLT package. I always used the ATI aluminum pieces, with a TH250C shell and output shaft.

[J.R. Haddad]

Pro Trans does in fact use Mopar pieces in their 350 TH Trans. I have one
and it has been fast and flawless. I don't know how it came about, if the
Smith family already had had all the Chrysler pieces, as originally they
only built Mopar transmissions, and they were an easy retro-fit to the 350 case,
or if the GM pieces were so heavy that it was worth getting the Mopar
pieces to fit, or a combination of both. Opening one of their transmissions
is like opening up a work of Art. Absolutely beautiful work inside.

J.R.

[Charles Stewart]

Thanks Mr. Alan Roehrich and Mr. J.R. Haddad for those information.
This will help me a lot more that you may think...
Keep on,

[GTX JOHN]

They are now operating out of Waco Texas.

[rsalemi]

AMC in 80's used the Chrysler 904 trans with a chevy bolt pattern behind the GM 4 cylinder. Bolts right up to a chevy V8 block and all the internals are 904. They also used a 2.74 low gear instead of the 2.45 standard.