I have 1970 w-31 all matching numbers,, when restoring the car i had the torque converter rebuilt now when you put it in gear it wants to take off,
it has no stall hardly at all so i called the trans shop they didnt know what stall a w-31 should have and i cant find it in any of my books does anyone know what the factory stall should be???http://members.***.net/rlarson831/oldssite.shtml

 

welcome. i am sure someone will have an answer for you soon. looks like a great car!

 

You have to figure it is in the 2300 to 2500 area. I can't believe no one has the exact number here. Where the hell is Norm when you need him?

 

I was thinking that mine was 2500 stall.

 

I believe the 455 came with a 2000 stall

 

Its a 350...with a 2500 stall.

 

Thanks for everyones input that really helped im going with the 2500 stall.

 

This link talks about the stall rpm's:

https://classicoldsmobile.com/forums...converter.html

 

Just a word of advice which has been said on here before, mark your parts before they go away so you'll know your getting the same thing back. Some shops will use your parts as cores and buy remans from larger companies to give you back. A friend of mine had that problem with a TF727 a few years back.

 

You should add that beautiful '70 W-31 to the registry!
http://www.wmachineregistry.com
37 1970 W-31s registered.