max wedge engine numbers

[larker47]

I HAVE A 1963 PLYMOUTH FURY WITH A MAX WEDGE ENGINE IN IT AND THE NUMBERS I SEE ON THE FRONT OF THE MOTOR ARE AS FOLLOWS
MAR 426
2 23 C
ANYONE SHED LIGHT ON WHAT THIS MEANS.

FRONT OF THE BLOCJ AS DDCE OR DCDD

 

[Lefty71]

MAR??? I would expect MP.
426?? I would expect to see 42 in a `63. The font is very specific.

Maybe a good pic of that front pad would help.

 

[Dutchrebuild]

67 426 marine block

 

[33 IMP]

This is my real 63 426 max block. A real 426 max block should show the aaqa on the driver's side front of the block, and this casting number. Note the font on the pad is different than normal.