Karl: The day of the 30+ horsepower gasser was over in 1957. IH as did most other companies believed that. Europe switched to diesel right after WW#2.
In 1958, IH and most other north American companies believed North American farmers were ready to switch to diesel. Not much money went into R&D on gas tractor engines after the 350-450 series. For the most part IH were using modified truck engines. Even the 4 cylinder engines were 4 cylinders of the old 264 truck engine. Cost of operation was the biggest factor, diesel power was doing the job at roughly 1/3 to 1/2 the cost on fuel. The pre 1958 IH gassers did a decent job on power, but they couldn't match the same size diesel.
Gassers produced after 58 were a disaster. The only 6 cylinder gasser I ever saw was a 460 a neighbor had. The roar that thing made would make you think it could haul the city of New York to the west coast. Yet you put it in the field it had difficulty keeping up with a 4 cylinder 300. About the only thing it did more of, was burn more fuel.
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Today's Featured Article - The Fordson F Ignition System - by Anthony West. A fellow restorer contacted me earlier this year asking for some help and advice on a model F that he was restoring. He had over a period of months spent a fair amount of his hard earned cash on replacement parts for the old "trembler" ignition. Sadly though all his efforts seemed to be a waste of time and money as he still couldn''t get the temperamental old thing to run correctly!! If i said that this was a little frustrating for him that would be "conservative" in fact the problem had reduce
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