[blucar]

I seem to recall a lot of hype in the mid '50's about the "Y," (turkey track) blocks that were reputedly Canadian. It was claimed that the "Y" block, which was cast into the bell housing in lieu of 59, could be bored to 3-3/8" due to the thick cylinder walls.

I had a friend in Eastern Idaho during the mid '50's that had a "Y"(turkey track) block engine that he sold to a stock car racer. I never actually saw the engine, my friend had pulled it out of a '34 pickup that he bought from a farmer.
Living in Idaho in the '40/50's it was quite common to encounter vehicles that had came from Canada. My dad bought a '37 Pontiac in the early 50's for my mother to drive. It was an odd duck, had a Chevy 216 OHV in it. One of my uncles worked in the Pontiac dealership, he looked at the car and told us it was Canadian, Chevy body/chassis with Pontiac front sheet metal and trim.