Dyno: There you have it: The real reason for big inches. Notice the lovely, fairly flat torque curve? See how it rises above 100 foot-pounds so early and hovers so near 120 for so long? That's what provides such effortless acceleration.
Peak Horsepower: 96.8 hp @ 5000 rpm
Peak Torque: 121.4 ft.-lb. @ 3250 rpm