Hi all well I have found 3 more engines for my collection the first engine I was able to ID as a 1946/47 216 ci Block 3835124 this number may line up with a Canadian block , with a 1949 head 3835409.
Second engine is a 1929 194 ci block 835501 and head 835503
The third engine is the one I am having trouble with Block number 838738, and the head is a early 1937-1940. So I am hoping the block is the same as years as the head, so if some one is able to help ID the block that would be great.

Cheers Justin