Thermostat housing...

The two Motorad ones on RA look pretty good, and under $10... haven't tried one, but they look to have a nice thick flange, unlike some of the chintzy stamped ones I've seen.
1976 DODGE MONACO 7.2L 440cid V8 Thermostat Housing / Water Outlet | RockAuto

Thanks. I am leery of that one because when you google that part number, the good comes up and so does the shitty Dorman one. I ordered it though, so I'll keep you posted on "what I get". lol