I have found a Canadian Mercury 255 flathead engine with a block casting ID of C1BA which is a Cdn 1951 Ford & Merc block. He said the casting letters on the head are C8CM-C. I have seen Cdn C8CM-B heads but no -C's yet. Could the -B's be equal to EAB's and -C's equal to EAC's?
The engine is a...