This does not belong to me but I saw it on another board and thought someone here might be interested.
http://www.duckuscrapuspond.com/foru...ead.php?t=8020
Well here are the casting numbers.
BLOCK casting #: 3703524 date code: O114 (not sure it is an "O")
S/N on PAD: 0004388F55G
Both HEAD casting #'s: 3703532 date codes: G304, H244