Originally Posted by UtahYork
I'm guessing the numbers by the starter = January 23, 1954 production date.

John (UtahYork) got it exactly right on the block date code.

On the actual block casting number, IIRC for the ‘54 it’s located farther forward on the passenger side of the block. Look just above the oil pan mounting flange ridge in front of the fuel pump location. wink

~ Dan
1951 Chevy 3 window 3100
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