Comparing Ford Power Stroke Engines: From 6.7L to 7.3L & More


When it comes to diesel engines, Ford's Power Stroke lineup has been a staple in the automotive industry for years. These engines are renowned for their power, reliability, and efficiency. In this comprehensive comparison, we will delve into the world of Ford Power Stroke engines, ranging from the robust 6.7L to the venerable 7.3L. We'll explore their unique features, strengths, applications, and performance characteristics.

Understanding Power Stroke Engines

Before we dive into the comparison, let's briefly understand what makes a Power Stroke engine different from conventional gasoline engines. Power Stroke engines are diesel engines designed for optimal performance in heavy-duty trucks, offering substantial torque for towing and hauling.

6.7L Power Stroke


The 6.7L Power Stroke, introduced in 2011, marked a significant leap in Ford's diesel engine technology.


  • Impressive Torque: With up to 1,050 lb-ft of torque, the 6.7L is a towing powerhouse.
  • Fuel Efficiency: It offers improved fuel economy over its predecessors.
  • Reduced Emissions: Equipped with advanced emission control technology.

Weaknesses/Common Problems

  • Complexity: The advanced emission control systems can make repairs and maintenance more complex.
  • High Initial Cost: The 6.7L Power Stroke engines and their advanced technology come at a premium price point.


  • Heavy-Duty Trucks: Ideal for F-250, F-350, and F-450 Super Duty trucks.
  • Commercial Vehicles: Trusted by businesses for its reliability.

Best Application: The 6.7L Power Stroke is best suited for heavy-duty applications where maximum towing capacity and power are required. It excels in tasks such as hauling heavy loads and towing large trailers.

6.4L Power Stroke


The 6.4L Power Stroke, produced from 2008 to 2010, has a unique reputation.


  • Strong Power Output: Delivers 350 horsepower and 650 lb-ft of torque.
  • Turbocharging: Features a twin-turbo design for increased performance.
  • Reliable: Known for durability despite some initial reliability concerns.

Weaknesses/Common Problems

  • Emission Control Systems: Similar to the 6.7L, the emission control systems can be complex and prone to issues.
  • Fuel Efficiency: Relatively lower fuel efficiency compared to newer Power Stroke engines.


  • Ford Super Duty Trucks: Commonly found in F-250 and F-350 models.

Best Application: The 6.4L Power Stroke is a solid choice for those who need a balance between power and reliability in their heavy-duty trucks. It's suitable for tasks requiring substantial towing capacity.

6.0L Power Stroke


The 6.0L Power Stroke, manufactured from 2003 to 2007, has had a mixed history but remains popular.


  • High Torque: Provides up to 570 lb-ft of torque.
  • Improved Efficiency: Known for better fuel economy.
  • Aftermarket Support: Extensive aftermarket upgrades available.

Weaknesses/Common Problems

  • Head Gasket Issues: The 6.0L engine was notorious for head gasket failures, although many of these issues can be mitigated with aftermarket solutions.
  • EGR System Problems: Some early models experienced problems with the EGR (Exhaust Gas Recirculation) system.


  • Ford Excursion: Often seen in the SUV variant.
  • Work Trucks: Used in various commercial applications.

Best Application: The 6.0L Power Stroke is a versatile engine suitable for a range of applications. It's often chosen for SUVs and work trucks, offering a balance between power and efficiency.

7.3L Power Stroke


The legendary 7.3L Power Stroke, produced from 1994 to 2003, still commands a strong following.


  • Time-Tested Reliability: Renowned for its durability and longevity.
  • Simple and Robust Design: Easy to maintain and upgrade.
  • Ample Torque: Offers 500 lb-ft of torque.

Weaknesses/Common Problems

  • Age: Due to its age, finding well-maintained 7.3L engines can be a challenge.
  • Emissions Compliance: Older models may not meet modern emission standards without modifications.


  • Classic Ford Trucks: Remains a favorite for enthusiasts and vintage truck owners.
  • Commercial Workhorses: Trusted in various heavy-duty applications.

Best Application: The 7.3L Power Stroke is an excellent choice for classic truck enthusiasts and those seeking a reliable engine for heavy-duty work. Its durability makes it ideal for commercial applications where downtime is costly.

6.2L Power Stroke


The 6.2L Power Stroke, introduced in 2011, caters to a different set of needs.


  • Mid-Range Power: Strikes a balance between power and efficiency.
  • Cost-Effective: Generally more affordable compared to larger Power Stroke engines.
  • Light-Duty Trucks: Commonly found in Ford's F-150 trucks.

Weaknesses/Common Problems

  • Lower Towing Capacity: Not as suitable for heavy towing as some larger Power Stroke engines.
  • Fuel Efficiency: While better than gasoline engines, it may be less efficient than newer diesel engines.


  • Ford F-150 Trucks: Used in light-duty applications where efficiency and moderate power are required.

Best Application: The 6.2L Power Stroke is tailored for light-duty applications where efficiency and cost-effectiveness are essential. It's a suitable choice for those who need a capable engine for daily use without the demands of heavy towing.

6.8L Triton V10 (Bonus Mention)


Although not a Power Stroke engine, the 6.8L Triton V10 deserves a mention for its versatility.


  • Gasoline Option: Ideal for those who prefer gasoline over diesel.
  • High Power: Offers substantial horsepower for heavy-duty applications.
  • Motorhomes and Commercial Vehicles: Often seen in RVs and utility trucks.

Weaknesses/Common Problems

  • Lower Fuel Efficiency: Gasoline engines typically have lower fuel efficiency compared to diesel counterparts.
  • Emissions: May not meet stringent emissions standards without modifications in some regions.


  • Motorhomes: Commonly used in RVs.
  • Utility Trucks: Suitable for applications where gasoline engines are preferred.

Best Application: The 6.8L Triton V10 is a gasoline engine suitable for applications where diesel may not be preferred. It's commonly found in motorhomes and utility trucks that require substantial power.

Fuel Efficiency Comparison

The Quest for Fuel Economy

In an era of environmental consciousness, fuel efficiency plays a significant role in choosing the right engine. Let's compare the fuel efficiency of these Ford Power Stroke engines.

  • 6.7L Power Stroke: While not the most fuel-efficient, it strikes a good balance considering its power output.
  • 6.4L Power Stroke: Known to be less fuel-efficient due to its higher power output.
  • 6.0L Power Stroke: Offers improved fuel economy compared to its predecessors.
  • 7.3L Power Stroke: Considered less efficient due to its older design.
  • 6.2L Power Stroke: Strikes a balance between power and fuel efficiency, especially in light-duty applications.


1. Which Ford Power Stroke engine is the most fuel-efficient?

The 6.7L Power Stroke is the most fuel-efficient among Ford's diesel engines, thanks to its advanced technology and optimized performance.

2. Are there any common issues with the 6.0L Power Stroke engine?

The 6.0L Power Stroke had some initial reliability concerns, particularly with its EGR system and head gaskets. However, with proper maintenance and aftermarket upgrades, many have found success in mitigating these issues.

3. Can the 7.3L Power Stroke be upgraded for more power?

Yes, the 7.3L Power Stroke has a robust aftermarket support system, offering various upgrades to increase its power and performance.

4. Which Ford trucks come with the 6.2L Power Stroke engine?

The 6.2L Power Stroke is commonly found in Ford's F-150 trucks, providing a balance between power and efficiency for light-duty applications.

5. Is the 6.8L Triton V10 a diesel engine?

No, the 6.8L Triton V10 is a gasoline engine, often used in applications where diesel engines may not be preferred.

6. Which Power Stroke engine is best for heavy towing?

For heavy towing, the 6.7L Power Stroke may be the top choice, offering exceptional torque and towing capacity.

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