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The only difference between the MaxxForce DT, MaxxForce 9, and MaxxForce 10 engines is in the stroke of the crank (and the utilization of shorter connecting rods, respectively). All three engines share a bore of 4.59 inches. However, the crankshaft used in the MaxxForce 9 and 10 (shown) brings their stroke to 5.75 inches (versus 4.68 inches for the MaxxForce DT), making them both 570ci engines (9.3L). All three engines are produced along the same assembly line.