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It’s been more than 20 years since Ford updated the gasoline engines in its heavy-duty lineup. The new 7.3-liter is down a couple of cylinders, but just about everything else is bigger and better. Look for430 horsepower at 5,500 rpm and 475 pound-feet of torque at 4,000 rpm, both of which Ford claims are best-in-class for gasoline V8s. The engine is set up to run on compressed natural gas, too. The engine uses overhead valves and a forged steel crank and is relatively compact, especially compared to Ford’s DOHC V8s. The idea was to keep it simple, durable and easy to maintain.
Ford says the engine is for customers looking for more towing capability than an F-150 but don’t want to go whole hog with the 6.7-liter PowerStroke diesel. The 7.3 will debut as an option in the F-250 and F-250, slotting in above the 6.2-liter gasoline V8. A lower-output version of the 7.3-liter making 350 horsepower and 468 pound-feet of torque will be standard on F-450 chassis cab models as well as the F-550, F-600 tweener model, F-650 and F-750. The long-running E-Series cutaway will also get the 7.3-liter.
The 7.3-liter will be paired with a new 10-speed automatic based on the one in the F-150, though only a few unstressed parts carry over. Everything has been enlarged or strengthened for use in a heavy-duty application. Despite carrying four more gears, the new transmission is the same length as the current six-speed and only 3.5-pounds heavier.
This new 7.3L essentially replaces the modular 6.8L V10. In it's highest power forms it made 362hp and 460ft-lbs. Increases of 68hp and 15ft-lbs respectively. It's respectable if you need a gas engine more powerful than the standard 6.2L (385hp and 430ft-lbs), but aren't ready for the PowerStroke (450hp and 935ft-lbs)
It seems we are now slowly going back in the "big block" era.
We know how the last era ended for the car industry.
Sad to see american car industry taking the bullet train to smash their head in the wall.
It seems we are now slowly going back in the "big block" era.
We know how the last era ended for the car industry.
Sad to see american car industry taking the bullet train to smash their head in the wall.
You realize this probably won't be a volume seller right?
Most people not getting the diesel will opt for the cheapest(and easiest to find) option....the 6.2.
This engine serves those who need more grunt than the 6.2 but don't want to spend an extra $8k on a diesel engine + the associated cost of ownership. This is a great option for RV'ers who only need to tow a few times a year. Or fleet trucks that need to move heavy stuff but don't want to deal with diesel issues(modern diesels don't like idling).
You realize this probably won't be a volume seller right?
Most people not getting the diesel will opt for the cheapest(and easiest to find) option....the 6.2.
This engine serves those who need more grunt than the 6.2 but don't want to spend an extra $8k on a diesel engine + the associated cost of ownership. This is a great option for RV'ers who only need to tow a few times a year. Or fleet trucks that need to move heavy stuff but don't want to deal with diesel issues(modern diesels don't like idling).
Benoit loves to trash the U.S. and anything not snowflake green.
it is true though that electric pickups, when they come, are going to disrupt that entire segment.
Relatively mild power numbers for such a large engine.
watched fastlanetruck and at the 7.3 event they showed the torque curve (what really matters). Its making 400 ft# at 1500 rpm and builds all the way up, very linear. Being a big overbuilt N/A engine it will last forever
watched fastlanetruck and at the 7.3 event they showed the torque curve (what really matters). Its making 400 ft# at 1500 rpm and builds all the way up, very linear. Being a big overbuilt N/A engine it will last forever
watched fastlanetruck and at the 7.3 event they showed the torque curve (what really matters). Its making 400 ft# at 1500 rpm and builds all the way up, very linear. Being a big overbuilt N/A engine it will last forever
Sure the lowend power is great, but with such a big displacement engine, they could have prioritized HP a little more. So if we "only" get 350ftlb at 1500rpm but gain an extra 50hp for quicker acceleration, it might be a good trade off.
Relatively mild power numbers for such a large engine.
By design. This is not meant to be a high-strung mill. It's designed to take a beating, day in and day out, for 200k miles.
Originally Posted by situman
Sure the lowend power is great, but with such a big displacement engine, they could have prioritized HP a little more. So if we "only" get 350ftlb at 1500rpm but gain an extra 50hp for quicker acceleration, it might be a good trade off.
Acceleration is determined by force delivered to the wheels. That means torque. But all this is irrelevant, because this is not a top-fuel dragster. It is a work truck.
08-01-19 | 09:41 AM
Ford reveals specs on new 7.3-liter V8
