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Designed for use in the Super Duty F-250 and F-350 trucks and other applications, the 7.3-liter engine pounds the ground with over 400 lb-ft of torque from 1,500 to 5,500 rpm, with the 475 lb-ft peak. Horsepower tops out at 430 at 5,500 rpm. With the right mods its personality could get a lot more powerful.