Newbie needs help decoding!

Thanks for the /6 responses.
I look forward to tinkering with a /6 engine.
Is it possible the factory used the 2463230 block in a 64 car even though charts list it as a 1965 block? The numbers to the right indicate a Jan 15th production, don't they? This is five days before the SO date.
The V on the engine stamp indicates a 1964 block. The stamping date for that is 2 07.
I know that could be changed, but why bother on such an inexpensive car?