That engine was "B" tested under heavy duty truck use. that means being worked hard all the time. The HD "B" test shows how many made it to X amount of miles with NO major repairs.
The 7.3 PowerStroke has:
B10 of 200,000 miles (10% failed, 90% did fine)
B50 of 350,000 miles (50% failed, 50% did fine)
I have a 1994 7.3 IDI. It's the last 7.3 built before the PowerStroke DI engine came out in mid-94. My engine is lighter-built. It just turned 300K miles and runs like new. It pulled a fifth-wheel livestock trailer for many years.
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Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
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