turbo 350 or 250

[dweezil]

How can you tell the difference? They have the same pan.

[pro60chevy]

This might help.

[lt1s10]

Originally posted by dweezil
How can you tell the difference? They have the same pan.

as far as i know a 350 pan only fits a 350. not sure what the 250 is.

[drg84]

I think he means 200. Also, doesnt some of the t-350s have the number on the top of the bellhousing?

[lt1s10]

Originally posted by drg84
I think he means 200. Also, doesnt some of the t-350s have the number on the top of the bellhousing?

dont know about the numbers, but the pans are not the same

[pro60chevy]

Here's a pic of the pans. Rather than cut and past just the GM stuff, I choose to just post the entire pic.

[dweezil]

I never heard of a 250 before, but a transmission rebuilding catalog I have at home (I'm at work now, don't tell anyone) shows that 13 bolt pan as a 350 or 250. It is in a 82 malibu with a 229 v6. What is the difference between a 350 and a 350c? Car will probably get a bbc and t400, but I'm curious about the existing trans.

[lt1s10]

Originally posted by dweezil
I never heard of a 250 before, but a transmission rebuilding catalog I have at home (I'm at work now, don't tell anyone) shows that 13 bolt pan as a 350 or 250. It is in a 82 malibu with a 229 v6. What is the difference between a 350 and a 350c? Car will probably get a bbc and t400, but I'm curious about the existing trans.

ive been to the g.m. schools for the 350 and 400 but havent seen a 250, but the 350 had a felt filter for a while and they would stop up to quick, so they changed to a paper one. i think thats where the 350/c comes in.

[Roden4fun]

GM did make a 250 Trans, They used them in the Vega and other small cars. They are a cheap 350 trans. Less clutches and no second gear servo showing on the outside of the trans.

[lt1s10]

Originally posted by Roden4fun
GM did make a 250 Trans, They used them in the Vega and other small cars. They are a cheap 350 trans. Less clutches and no second gear servo showing on the outside of the trans.

what yr vega? i think youer thinking about the powerglide.

[drg84]

Ive never heard of a t-250 either. Are you sure you dont mean a t-200? These trannies are commonly found behind very small block GMs and V6's in the early 80s.

[Jerryd]

Originally posted by Roden4fun
GM did make a 250 Trans, They used them in the Vega and other small cars. They are a cheap 350 trans. Less clutches and no second gear servo showing on the outside of the trans.

I too have seen a TH-250 and it's just a stripped down TH-350 as Roden4fun said.

Jerry D...

[dweezil]

So..........as the original questions goes, How do you tell the difference between a th350 and a th250? From the exterior they obviously appear identical?

[Bob Parmenter]

This might help:
http://lib1.store.vip.sc5.yahoo.com/...IDComplete.pdf

[Jerryd]

A TH-250 Has a band instead of a clutchpack for 2nd gear. If you had a 250 and a 350 sitting next to each other you would be able to tell the difference.
Jerry...