The Aluminum Powerglide was used from 1962 until it was replaced with the Turbo-Hydramatic series of transmission in the early 1970s
Both the '62 Belair and the '62 Impala I had years ago where cast iron Powerglides. I'm pretty sure the Belair was original but I know the Impala was not because I bought it without engine and trans and stole the stuff from the Belair...
I later put that some engine and transmission in a '41 Chevy 1/2-ton.
But back to the topic, I don't believe there was ever an alloy case 'glide available behind a 235, so the proposed swap here probably involves a cast iron case and the requirement to find that adapter ring that goes between the motor and tranny.
Now as I've said I don't think the later transmission was used behind a 235 it occurs to me to wonder what automatic transmission was used in those Canadian Pontiacs that used 261s. Anyone know?
