Was at a plow day at a local historic farm today and saw this beast.

What astounded me was the size of the engine - the block alone had to be at least 3.5 feet high and long. Dug up some specs:
PTO horsepower: 79
Max. no-load RPM: 1,950
Bore: 4"
Stroke: 5"
377 cu. in.
Valve clearance: .015" int., .025" exh. (which is, coincidentally, the same as the spark plug gap.)

What astounded me was the size of the engine - the block alone had to be at least 3.5 feet high and long. Dug up some specs:
PTO horsepower: 79
Max. no-load RPM: 1,950
Bore: 4"
Stroke: 5"
377 cu. in.
Valve clearance: .015" int., .025" exh. (which is, coincidentally, the same as the spark plug gap.)
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