9ratty, the casting number you have, 3695403, isn't listed in the resources I've looked at, but all of the casting numbers that are listed that start with 369 are early 235s, FWIW. The "369xxxx" casting numbers listed were used in cars and trucks from '50-52. Not sure about Canadian usage. There should be an engine serial number on the machined pad just aft of the distributor, and sort-of behind the dip stick. The first 3 letters of the SN will help ID the engine, if you can read them (again with the caveat that I'm not sure about Canadian usage). The code you see near the rear - E 10 - is part of the date code. There should be one more digit in that, which indicates the year (E 10 decodes to May 10th).
