If you are in the market for a Ford diesel engine, the article here will help you understand which power stroke diesel engine is best for a swap. This is because the family of power stroke Ford diesel engine has some of the most technologically advanced engines & the list is long.

As a buyer, it’s important that not only you know about the best engines but about the worst ones as well. There are plenty of variants of a single power stroke engine. For a daily driver, it can be overwhelming when it comes to choosing one of them. With usedengine.forsale, stop asking “What is the best Ford diesel engine”, and take a quick look at tips on what to look for & what to look out for:-

Best Ford Diesel Engine: Different Strokes

Ford diesel engines are available in different strokes/versions, all are capable units. But two variants stand apart from the others:

• 7.3 Liter Power Stroke Engine
• 6.7 Liter Power Stroke Engine

Other variants include

• 6.0 Liter Power Stroke Engine
• 6.4 Liter Power Stroke Engine
• 6.9 Liter Power Stroke Engine

All these variants are diesel variants but vary in power, fuel efficiency, and size. Let us take a look at which one of these is the best.

7.3 Liter Ford Diesel Engine: History

The 7.3-liter Ford diesel engine made its mark in the 1990s. It gained a reputation for strength and reliability. With a robust design, this engine quickly became the most reliable American-built Ford diesel option for heavy-duty work. Back in the day, farmers, contractors, and fleet operators put their faith in the motor. It could get beaten up and still run without giving them much trouble.

• 7.3 Liter Ford Diesel Engine: Model, Years & Specs

From 1994 to 2003, this unit was used in Ford Super Duty trucks. It used a HEUI injection system and produced power that was more than enough for hauling and towing. The torque curve allowed drivers to move heavy loads without stressing the motor. Many of these engines still run today, which proves why many call it the best Ford diesel engine for long-term ownership.

6.7 Liter Variant: History

The 6.7-liter Power Stroke came later and was released in 2011. This was Ford’s in-house design built to replace older Navistar-based engines. It had modern features like a compacted graphite iron block and advanced fuel injection. With these upgrades, Ford pushed the limits of performance while keeping emissions in check. The motor became a big step in Ford’s diesel evolution.

• 6.7 Liter Ford Diesel Engine: Model, Years & Specs

From 2011 to the present, the 6.7 liter has been used in Super Duty trucks. Over the years, Ford has continually updated the specifications to enhance horsepower and torque. Early models produced around 390 horsepower, while current versions make over 475 horsepower with strong torque output. These numbers made it a contender for the most reliable Ford diesel engine in modern times. Drivers who required both power and efficiency often favored this motor.

Worst Ford Diesel Engine

Not every Ford diesel engine gained respect. The 6.0-liter Power Stroke produced between 2003 and 2007 is often ranked as the worst Ford diesel engine. It had major issues with head gaskets, EGR coolers, and injectors. Many owners faced high repair bills and frustration. This engine damaged Ford’s reputation during those years and serves as a reminder of why choosing carefully matters.

Life Expectancy of Ford Diesel Engines

When maintained properly, a Ford diesel engine can last hundreds of thousands of miles. The 7.3-liter is known to run past 400,000 miles with basic care. The 6.7-liter has also proven capable of long service life, especially with regular oil changes and fuel system maintenance. On the other hand, engines like the 6.0-liter often failed early, which is why they are not considered among the best options.

Conclusion

Ford has built both great and flawed diesel engines over the years. The 7.3-liter is widely viewed as the best Ford diesel engine of the past, thanks to its durability. The 6.7-liter represents the most reliable Ford diesel engine for modern trucks with its mix of power and efficiency. On the other hand, the 6.0-liter stands out as the worst Ford diesel engine in history. It’s just that one should know what they are looking for exactly. When it comes to choosing, we at usedengine.forsale guide our customers towards right choice.