In Reply to: Golden Jubilee posted by Phil Ryalls on July 29, 2020 at 07:44:35:
Often fellas see a casting number or a mfg ID number on a part and assume it is the serial number. These would be as cast raised characters. The FORD engine block serial numbers on all vehicles, the 9N, 2N, and 8N tractors included, were all hand-stamped on a boss cast behind the oil filter housing near the head. The NAA models had two places, early and later, that they were stamped on 每see PIX. ALL 9N and 2N tractor models had the "9N" prefix in the serial number; all 8N models had the ※8N§ prefix. There was never a "2N" stamped prefix on serial numbers. There was a STAR symbol ( ∵ ) before and after the s/n on all FORD vehicles to designate that steel cylinder sleeves were installed. In April, 1950 FORD changed the sleeves to cast iron in all vehicles and then stamped the s/n＊s with a diamond symbol ( ☉ ) fore and aft. Now, it is a moot point as all sleeves supplied are cast iron, no steel is made today. All that being said, there is no guarantee that your engine was original with your tractor. Engines got swapped out often as OEM ones were blown and replaced with a donor.
FORD ENGINE BLOCK SERIAL NUMBER HAND STAMPS:
The serial numbers on the first 22,238 NAA models were stamped on the left front
of the engine block just below the head as shown in the photo below.
FORD TRACTOR 每 NAA/JUBILEE 每EARLY SERIAL NUMBER LOCATION:
Serial number location on later NAA models was on the left side of the transmission case just below the flat above the starter bulge as shown in the photo below.
FORD TRACTOR 每 NAA/JUBILEE 每LATE SERIAL NUMBER LOCATION: