There are some differences in the 478 used in the Army trucks and the ones used in the tractors. The blocks are the same casting but the tractor engines have a few more holes drilled and tapped in them for the water pump. The heads are also the same casting but the two are machined a little different between the valves. The truck engines have a multifuel injection pump so the pump and plate behind the timing cover and the timing cover is different. Also the timing gears are different on the truck engines and the tractor with the roosamaster pump. Some of the army truck crankshafts are also different. they have two more counterweights on the crank and they are much larger. The rods in the truck engines are also lighter. The intake, exhaust and water manifolds are also different. The oil pump and oil pan is also different because the large sump on some of the army trucks is in the front instead of the rear. I believe the 2 1/2 ton trucks have the sump in the front and the 5 ton trucks have it in the rear. The tractors have it in the rear. The army truck engine can be made to work in the tractors. It just takes a little work. These army truck engines can be Hercules, White or even Continental. They are all the same casting. The truck engines are usually an LD-465 or an LDT-465 or an LDS-465. The 465 is not the cubic inches they are still 478 cu. in. just like the tractor engines.
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Today's Featured Article - Product Review: Electronic Ignition - by Staff. Oil, for example has come a long way in the last 50 years and I don't use anything but the latest API grade available. I've heard the arguments for non-detergent oils but would never trade it for today's formulations. Paint is another, the modern acrylic enamels are great for resistance to grease and fuel stains, retaining their shine and they last forever; unlike enamels and lacquers . Still another is the alternator. No doubt using the original generator keeps the tractor pure, but for thos
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