Why did someone go to the trouble to transfer the engine serial number from a '42 216 to a circa '56 235?
stock49,
I notice that there are B prefix engines in the late 50s and early 60s, where B designates a Powerglide engine. I see some PM designations in '61 for trucks, but not clear what that means...see here on 2nd page. Could be a P possible looking at it...I will try to wire brush it good tomorrow to see if I can dig up any more info.
http://www.1954advance-design.com/chev-specs/1961-t-ser.pdf
