https://www.stovebolt.com/ubbthreads...&Number=232919
That's a casting number. Notice the conversation about "green paint". You will need the number on pad near dizzy.
Probably Canadian motors have the same numbers as USA. Some castings have alpha numeric date codes to narrow it down and other numbers stamped or cast will help. Also the known motors for 1965 is available. Use your google and your noodle.