Dave Eklund
Member
my dad has a 1952 wd9 and the head has a casting #of 10-29-x and 260692R1 the block has a number cast in it behind the inj pump of 124-DM and4-14-x and the transmission has a casting # of 5 something -x we figured the head was changes or rebuilt as there is what is left of a sticker on it from a shop we are trying to figure if the motor might have been replaced or rebuilt as a 350 instead of a 335 thanks here is a few pics also have a 53 swd9 # 581 J what would the J stand for the head on that tractor has a #of 2602692R7 just cast in a different spot than the 52 the 53 has Y in the casting codes and the 52 seems to have X on casting codes