Ford About to Launch Powerful 7.3 Liter Gas Engine for Big Trucks

August 01, 2019 by Jerry Hirsch, @Jerryhirsch

Ford plans to pack a powerful new gasoline engine into its range of medium-duty trucks.

The 7.3-liter V8 also will be an option on its Super Duty pickup truck line.

The new engine, standard on F-550, F-600, F-650 and F-750 medium-duty trucks, will provide up to 430 horsepower and 475 pound-feet of torque.

“This engine has the largest displacement in its class and is designed to provide benefits in key areas like power, durability, ease of maintenance and total operating costs,” said Joel Beltramo, Ford manager for gas V8 engines.

Ford is targeting heavy-duty pickup truck “customers who need the strong towing capability but not quite enough to need to step up to a turbo diesel,” Beltramo told

The new V8 employs an overhead-valve architecture that generates power low in the engine-rev range to start pulling heavier loads sooner. Other features include a variable-displacement oil pump and extra-large main bearings. It also has a forged-steel crankshaft for durability and piston-cooling jets to help manage temperatures under heavy loads.


Customers buying a vehicle with the engine will find it paired with a newly designed 10-speed heavy-duty automatic transmission. The exceptions are the F-650 and F-750, which retain their six-speed transmissions.

Ford based the new transmission on the design of the 10-speed in the smaller F-150 pickup truck. But only 7 percent of the parts are common, mostly small items such as springs and valves. The automaker has made the new transmission beefier from more durable components. It weighs just 3.5 pounds more than the six-speed transmission it replaces.

Ford will offer the new gas engine late this year, with the first in the Super Duty F-250 and F-350 pickups. Other engine options for the trucks include a 6.2-liter V8 gas engine and an upgraded, third-generation 6.7-liter Power Stroke diesel motor.


The automaker has not yet provided power numbers for the improved diesel engine. But it has made significant improvements to the motor, which also goes by the Scorpion moniker.

The base architecture remains the same — a 90-degree V8 configuration. However, Ford made some significant improvements. A proprietary inboard exhaust system is designed to help manage heat under loads, said Anita Bersie, 6.7-liter diesel engine supervisor for Ford.

Other notable changes include a more efficient turbocharger. Ford also added a variable displacement oil pump so the engine can operate at high oil pressures when under strain.

“We’ve added a larger oil cooler so we can have improved towing performance and hot weather conditions,” Bersie said.

Ryan ZumMallen December 18, 2018
The 2019 Ford Ranger returns to the midsize pickup segment with a powerful and efficient EcoBoost engine as lifestyle buyers turn to trucks.

One Response

  1. Charles Israel c

    I wonder how big the crank bearings are and if it will cause to much heat


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