If I remember right a factory propane engine uses a higher compression ratio to take care of the less BTU's in the propane. All of the tractors we converted in the 70's and 80's used the gas engines and to compensate we had to use a bigger regulator to provide the same hp resulting in a somewhat lower hp per hr than gas. However at that time gas was 1.00 per gal and propane was 30 cents per gal making it feasible to do. It is true the propane oil stays much cleaner than gas. I prefere a diesel because of the convienence of filling the tank.
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Today's Featured Article - Tractor Profile: Silver King - by Staff. Silver King tractors were produced by the Fate-Root-Heath Company of Plymouth, Ohio. The company was founded by John Fate in 1884 and was originally called the "J.D. Fate Company". After several mergers over the years, the final company name of Fate-Root-Heath came about in 1919. The first tractor produced was actually called the "Plymouth" tractor and was powered by a 20 HP 4-cylinder engine with a 3x4" bore and stroke. The four speed transmission had a top speed of 25 mph! After more t
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