Depending on the year, hp, torque, and overall performance should be basically the same as all the other F-53 chassis units from them and the other manufacturers.
If you are looking at new, it "could" be based on either of two engines, the old 6.8 V-10, or the new 7.3 V-8.
For 2020 chassis these are the Ford numbers with the 7.3 engine.
Highlights
Fuel Capacity 40 gallon, 55 gallon, 80 gallon
Horsepower 350 hp @ 3,900 rpm/ 300hp @ 3,750 rpm (Economy)
Torque 468 ft-lbs @ 3,900 rpm/ 425ft-lbs @ 3,250 rpm (Economy)
Transmission TorqShift® 6-speed automatic with overdrive and tow/haul mode
Wheelbase 138", 158", 168", 176", 178", 190", 208", 228", 242", 252"
But either way, it should not be appreciably different than other units from the same model year.