what is a 7.3 truck?
1, 2019 – Ford F-Series, America's best-selling truck for 42 years, is once again raising the bar for capability with its all-new 7.3-liter V8 gasoline engine. The 7.3-liter engine in Super Duty pickup cranks out best-in-class gas V8 output of 430 horsepower at 5,500 rpm and best-in-class torque of 475 ft.