The Stovebolt Site Forums The Shop Area Engine Shop 216, 235, or ???

Here is a link to a casting number listing by Hemmings:
Head Casting Numbers
You will see the casting number 3835499 listed as 1950 to 52 216. This is the head that I now have on my 216 and it has the short side cover. This is a US casting. The original Canadian casting number is 3695451. I woould say that this type of 216 existed in Canada and the US.