Re: 1997 Emission Compatible 7.3 Engine in my 1995
I doubt that Ford will have any records on a 20+ year old truck even if they did the work themselves.
The best thing is the check the engine serial number and see if you can find when it was manufactured by the serial number. The serial number for the engine will be located on the block next to the oil filter header.
On the odometer it is Federal Law that they can't turn it back and has nothing to do with state laws and with any vehicle over 100,000 miles everything on the odometer becomes iffy.
96 F250 XLT 4x4, 4:10 gears, 5 speed, Tymar intake and HX hose, downpipe, pyro and boost guages, coolant filter, Luc clutch