deciphering the year from engine block serial numbers

Double A

Junior Member
How do I figure out the YEAR of my ModelAA Truck from the serial number on the engine block? The info I've found on the web doesn't seem to go back to the 1920s. It concentrated on autos from the 1950s and up.
 
You need to look at several truck details to establish the year. Do you have any pictures? What is the engine number? Engines are easily and often changed, so the number may or may not be of some help.
 
I just looked the one up for my late 31 CCPU, steel top, indented firewall and the engine date is 1/17/29. I have titles dating back to 1969 with this number. So it was either changed out prior to 1969 or was a really left over block...
 
How do I figure out the YEAR of my ModelAA Truck from the serial number on the engine block? The info I've found on the web doesn't seem to go back to the 1920s. It concentrated on autos from the 1950s and up.

If the block is an original stamped block, not a reground and restamped, then you can go to Bob's site or mine and figure out the day of the original stamping.

However, if it is a reground, and restamped block, there are several ways you can get it to within a certain time frame.

Pluck
 
IF the motor gets changed they might grind off the old number and stamp their old bad engine number onto the new engine, so it still matches the title. Rather than grind, I'd use a punch to work out the old number and restamp the new number, so you still have the original cast pad surface.
 
Bob, :D THANK YOU SOOOO much for helping us find the Birth Certificate Date of our newly Adopted Model AA truck. I can't believe you have the exact DAY ! We feel so much closer to her now LoL:)
~Beth and Gene~;)
 
Is this a re-stamped engine or a spares?
 

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I thought likely. I have often wondered what the significance of the sideways "4" is. It must have meant something to someone.
 
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