360 Mag/904 this is what I have

The converter is NON-WEIGHTED. Chyrsler weights welded to the front (pilot side) cover of the converter. Are their any part numbers on the converter, or any tags? It looks like it might be a rebuilt unit as the factory doesn't paint converters. As it has a narrow ring gear on it, it's a 12" unit. Any idea what the transmission came out of and what year it is?

That's about all I can tell you from the photos.