they usually dont have a name on them, you have to measure them to get an idea about stall speed. rule of thumb: 11or12 inch= stock stall to 23 or 2400 rpm, 10" 2500to 3000, 9" 3000 to 4000 or so and so on.
I have been told by 2 tranny guys so far that they wont ever reuse an old converter. I have an old one with my tranny and was wondering if it could be reused.....I guess they take the old ones as cores and put reman ones in.