Torq Converter 273 ci.

Much appreciated!
Finding a converter builder is not all that difficult. In Ontario:>SMR, in BRADFORD, ONT. 888-846-6603. He at one time was a very active S/S drag racer. Knows his stuff on Mopars for sure. Check out his website, or give him a phone call.
Knew him when I worked in the industry and always got a positive response if I was talking to one of his customers. There are others, but he's the closest in your area.