Can you help id this slant six..!?

Poissibly industrial?

Possible. I assume 67 motors were using the 66 block?
But it does have all the ps brackets and items to suggest it was in a car at some point.

Possible it was not the motor that car started with...this was well over a decade ago

The July 27, 1967 build date (if I’m correct) is also confusing because at that point are the building new 67s or did they switch to 68s? It’s rather late in the model year. I’ve no idea how the factories worked back then.

But regardless is it the block or the crank that is the issue? Could it be the old block with the new crank or am I talking nonsense?