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| | | Forums66 Topics128,115 Posts1,056,292 Members48,439 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Sep 2011 Posts: 25 New Guy | | New Guy Joined: Sep 2011 Posts: 25 | I have been all over the internet and can't find anything close to iding these numbers that are on my block CAA203273 are what I see on the id plate near the distributor. | | | | | Joined: Oct 2004 Posts: 1,780 Master Gabster | | Master Gabster Joined: Oct 2004 Posts: 1,780 | Does not look like any numbers I have seen. Could the be California Assigned numbers on a replacement engine? What are the casting numbers on the engine block?
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | CAA203273
Might be a WWII code
2AA in 1942 decodes to:
2 = 1942
A = passenger car
A = 216 Flint, MI
DAA in 1946 decodes to:
D = 1946
A = passenger car
A = regular engine, Flint, MI | | | | | Joined: Sep 2011 Posts: 25 New Guy | | New Guy Joined: Sep 2011 Posts: 25 | So I'm guessing if that's what it is, they took the original motor out that it had in 41 and put a straight 6 from 1943 in the dump truck?? | | | | | Joined: Sep 2011 Posts: 25 New Guy | | New Guy Joined: Sep 2011 Posts: 25 | On the other side of the block it says 25 there's Like an inch gab and then it had 849 | | | | | Joined: Sep 2011 Posts: 25 New Guy | | New Guy Joined: Sep 2011 Posts: 25 | Yes they did help out a lot. They were pretty close. The markings by the fuel pump on mine were to the right and bottom but and for the 41 head all the numbers are under the cover. But yeah those pictures d-codes really helped out. found out that the head is from May 18 1941 and the block is from June 1 1943. | | |
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