Looking for info on the 440 4BBL Torque Converters

I think that's the converter I have but for the 904. Guy I bought it from for $50 said it was "some cheap TCI or whatever" mild stall converter. It gets the job done, stalls around 2600 rpm behind my warm 360 but it's super loose and inefficient. If I didn't have plans to swap in a T56 manual I'd get a better one it's not that great.