V8 engines tend to be larger bore and shorter stroke than an inline 4 or 6. The length of an inline engine can be shorter if the bore tends to be smaller. Inline engines tend to have longer strokes than V8 engines for this reason. Because most V8s are "over-square" with a larger bore than stroke, they can usually be revved to higher rpm limits than their longer-stroke cousins. An old M or SM engine tends to hit its torque peak at a much lower rpm than a comparably sized V8. There have been some nice looking installations of IH V8 truck engines in Farmalls, but they won't lug a heavy load at 1200 rpm like the old 4 cylinder engines would. On the subject of the M rear end, it will generally handle the increased power quite well unless the tractor is weighted heavier in an attempt to pull a bigger load, or the operator insists on doing heavy tillage in 4th gear.
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Today's Featured Article - Tuning Up Your Tractor: The Battery - by Curtis Von Fange. Buried somewhere beneath the sheetmetal, under the gas tank, or stuffed in front of the radiator is the battery. This elusive and neglected component of the tractor is the hardest to get to when it is dead and in need of a jump. But usually, the storage battery is a storehouse of electrical energy waiting to be released a the flick of a switch. A few maintenance tips and periodic cleaning will keep it charged for the duration of its life span. The battery is made up of a number of lead bas
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