We had a 550 gas on the farm in the sixties. I had a 504 gas row crop for about 5 years in the 90's. My vote would be for the 550. But as already said they are both different tractors depending on what you are using it for. Although our 550 was our go to main tractor on a 120 acer farm.
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Today's Featured Article - Horsepower Defined - by Staff. Indicated Horsepower This represents the power developed in the enine cylinder as obtained from the pressure in the cylinders. This is pressure obtained from an indicator which shows cylinder pressures. Indicated horsepower does not represent the actual useful power delivered by the engine. Brake Horsepower This is the actual horse power delivered by the engine to the shaft. It is equal to the "indicated horsepower" less the friction of the engine. It is useful hor
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