I have an 89 Integra RS two door with a busted automatic transmission.

I don't know much about these cars but I am guessing that this car came stock with a b16 engine.

Some one offered me there automatic transmission out of 1991 Integra LS with a b18 engine. I need to know if this transsmission will work in my 89 RS? Any one know, or know where I can go to find out?

Otherwise:
I'm looking for a place to buy a replacement, any suggestions? I live in Southern California

Thanks for the help in advance

Chavo