I.D. these engine block #s

[NHCharger]

I have two 440 blocks (I think).

Block 1.  4006830-440-7   I know this is a 440.

Block 2.         11-7-68    Manufacturer date of block.
               2536430-8
               CP46K9C176476  This # on a depressed pad at the bottom of the block.

[RD]

I have two 440 blocks (I think).

Block 1.  4006830-440-7   I know this is a 440.

cant find my lil white book on this one.. someone will chime in

Block 2.         11-7-68    Manufacturer date of block.
              2536430-8
              CP46K9C176476  This # on a depressed pad at the bottom of the block.

came out of a 69 chrysler town and country station wagon

what do the top pads say?

[maxwellwedge]

I have two 440 blocks (I think).

Block 1.  4006830-440-7   I know this is a 440.

Block 2.         11-7-68    Manufacturer date of block.
               2536430-8
               CP46K9C176476  This # on a depressed pad at the bottom of the block.

Are you sure 4006830 isn't 4006630?  If so 1978 440.

[NHCharger]

OK, with the help of some better light I found a casting date of 5-18-77 on block #1.
Nothing else on block #2.

Thanks for your help.