What is the most powerful F-450?
The diesel-powered F-450 with the 6.7-liter Power Stroke V8 delivers the most power, producing up to 475 horsepower and 1,050 lb-ft of torque.
This article examines the F-450’s engine options, what those numbers mean for towing and payload, and how buyers decide between the available configurations. It also situates the diesel option within Ford’s broader Super Duty lineup and the real-world tasks these trucks are built to handle.
Engine options and performance
Ford offers two primary engines for the F-450 Super Duty. Here’s how they compare in raw output and intended use.
- 6.7L Power Stroke V8 Turbo Diesel — 475 horsepower and 1,050 lb-ft of torque; paired with a TorqShift 10-speed automatic; optimized for heavy towing, high payload, and sustained sustained pulling power.
- 7.3L Godzilla V8 Gasoline — 430 horsepower and 475 lb-ft of torque; a strong alternative for drivers who prioritize lower upfront cost or simpler fuel availability, but with lower towing/haul capability than the diesel.
In practice, the diesel engine is the go-to choice for those who need maximum power, peak torque for heavy trailers, and best overall towing capability. The gasoline option remains appealing for daily driving and lighter-duty tasks where the higher fuel economy or lower maintenance simplicity may matter more.
Drivetrain, towing, and payload considerations
All F-450 configurations share a heavy-duty frame and suspension designed for demanding workloads. The diesel Power Stroke variant pairs with Ford’s TorqShift 10-speed automatic transmission and offers available four-wheel drive, advanced trailer-assist features, and multiple axle ratios that influence towing and payload specs. Actual ratings vary by cab/bed choice, axle ratio, and whether a gooseneck or fifth-wheel setup is used.
Ford’s official specifications emphasize that maximum ratings are configuration-dependent. Buyers aiming for the most capable combination for tractor-trailer duties, heavy gooseneck towing, or high payload typically select the diesel engine with the appropriate drivetrain and axle gearing.
Real-world implications for buyers
For fleet operators and heavy-haul customers, the diesel-powered F-450 offers superior sustained pulling power, better torque at low engine speeds, and a higher practical towing envelope. Those who rarely tow heavy loads or who prioritize lower fuel costs and simplified maintenance may opt for the gasoline version, accepting lower peak torque and towing limits in exchange for different ownership economics.
Summary
Among the Ford F-450 options, the diesel variant with the 6.7L Power Stroke V8 is the most powerful configuration, delivering 475 horsepower and 1,050 lb-ft of torque. While the gasoline 7.3L V8 provides strong performance, it trails behind the diesel in torque and maximum towing capability. The choice between engines depends on intended use, payload needs, and total cost of ownership.
