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21. Of course, the dyno is where we tell the tale. The 5.0L managed to put down 314.01 hp and 330.21 lb-ft of torque in stock form on our oversized wheels and tires. With the calibrated Roush supercharger system, those figures jumped to 414.74 hp and 369.78 respectively. Accounting for an easy 20 percent drivetrain loss, the F-150 is putting darn near exactly 515 hp through the crank as advertised.