I have an Canadian internet friend looking for info about the engine in his '51 GMC 9314 truck. He has not sent the stamped engine serial number, but the door tag shows C439609. As expected, the engine appears to be a Chevy 216 to me.

Is there anything to be gained from the tag's C439609?


'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.