Other than those that have been used by manufacturers for the purpose of both, several factors chime in. They are heavy. They are slow turning. They are governed to modest RPM. They do not have any where near the sophistication of Fuel injection, computer control, combustion and volumetric flow science, or metallurgy in them. They are good at torque, but not HP. Putting a computer controlled auto engine in a tractor is also modestly unwise unless re configured to 2500rpm, and detuned some. They are not designed to produce their maxHP for continuous operation. It takes about 15hp to go 60 mph. So Truck and car engines are designed to feel comfy doing that, not making 125hp for 10 hours on a feed mill. JimN
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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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