Mopar made many different version of both the 12 and 11 inch "stock OEM" converters, including the highest stall 11 inch 1970 383 2 barrel motor in the C bodies to street hemi and on the 12 inch motorhomes from low stall 35 Ft Class A chassis to the 1968 and up 318 class B chassis converters
I had a SS/AH race Hemi T/A 8 inch converter in my old pump gas Duster that worked absolutely excellent on the street
it was tight at light throttle in town driving and would stall around 5200 RPM at the track in low gear on the hit That was a really good converter for me