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Ford 7.3 Gas vs 6.7 Diesel: Learn All Before Operate [2023]

When it comes to Ford 7.3 Gas vs 6.7 Diesel comparison, many people may prefer the Ford 7.3L gas engines over the 6.7L Power Stroke diesel engine.

Each one of these engines has its own set of advantages and disadvantages.

We’re going to start this off with a bang. In terms of performance and hauling, the 6.7L diesel is the best option.

Nevertheless, the 6.7L is a $10,000+ engine choice, and not everyone requires more than the 6.7L does.

All the advantages and disadvantages of each vehicle are discussed here, as well as typical issues and possible fixes.

What is Ford 6.7L Powerstroke V8 Turbo Diesel Engine?

One of the most powerful V8 turbocharged diesel engines on the market is the 6.7L Powerstroke engine.

In 2008, Ford Motor Company started developing a revolutionary diesel engine for their Ford Super Duty in-house trucks, starting with a blank slate.

The Scorpion was a codename for this new product during its development, and the 6.7L Powerstroke engine was already in place when Ford unveiled it in 2011.

As an alternative to International Navistar’s 6.4L Power Stroke, Ford developed the 6.7L Powerstroke. After working together as partners for almost 30 years.

6.7L Power Stroke’s cylinder block is comprised of compressed graphite iron, which is lighter and stronger than cast iron (CGI).

6.7L Powerstroke’s nodular iron six-bolt head caps are likewise found on the deep-skirt block. Additionally, to the CGI material, the block layout and the CGI material save a substantial amount of weight.

Steel crankshaft, Mahle powder-metal cracked-cap connect rods, and Federal-Mogul cast aluminum cylinders are also included in the 6.7L Power stroke.

The end caps of the linking rods have been rotated by 45 degrees to improve their strength.

Piston cooling jets were installed in the engine to reduce the temperature of the piston and the combustion chamber.

Engine longevity benefits from this. Tupy, an American foundry company, makes all 6.7L blocks.


Features of 6.7L powerstroke diesel engine

  • 90-Degree & 8-cylinder engine
  • Overhead Valve design
  • best performance and durability
  • latest material and technology
  • quieter than ever before
  • Iron Compacted Graphite block
  • significantly lighter
  • high 475 horsepower
  • torque of 1,050 lb-ft
  • 157-amp standard
  • optional 332-amp dual alternators
  • Aluminum cylinder head
  • Idle control at a constant elevation
  • Cooling system with a pressurized series flow
  • Valve operation using pushrods and rocker arms

 6.7 Powerstroke Reliability

Because of its longevity and low maintenance requirements, the 6.7L Powerstroke engine has been in production for many years.

If you follow Ford’s recommended service intervals, this engine should be able to reach 300,000miles with no problems.

The fuel pump needs air and contaminants-free fuel, and the fuel filters of both engines must be changed before or at the manufacturer’s recommended interval.

Failures with the 6.7L emissions system are the largest roadblock to achieving good mileage.

All the emissions-control systems, including the EGR coolers, EGR valves, SCR systems and/or DPF, and different sensors, can require repairs, ranging from simple to catastrophic.

In the oil fields in Texas, and along North American pipelines like the great 7.3L, this engine has proven itself time and time again to be tough and reliable.

Common issues of 6.7 L Powerstroke & Solution

01. Diluting the oil with water

To avoid this problem in the future, make it a habit to check your oil. Replace the oil and filter as soon as you realize you’ve exceeded your maximum oil capacity.

The advice given in the owner’s manual is incorrect. Instead, get your 6.4L Power stroke’s oil and filter changed every 5,000 miles.

02. Radiators leaking

Other than changing the radiator, there isn’t a solution to this problem. The best course of action is to replace your factory radiator even if it has not yet failed.

03. Failure of the Injection Pump

Fuel system metal pollution has the potential to destroy numerous other components. For many, pump difficulties have necessitated the complete replacement of the gasoline system.

Injectors, fuel lines, and regulators may all need to be replaced on the 6.7L Power Stroke.

04. An assortment of pipes with holes in them

If your up-pipes are cracked, your only choice is to change them. If you’re in the market for a new exhaust system, there are several high-quality aftermarket options available.

05. Problems with Fuel-Water Separators

Draining the fuel separator/OEM Water regularly is the best approach to avoid fuel system failure. The more often, the better.

06. Engine Oil Cooler Clogged

Due to its design, the 6.7L oil cooler cannot be cleaned. Instead, you’ll need to get rid of it entirely.

You can either use an alternative engine oil cooler or a Ford Original engine oil cooler to fix the issue for another 50-75,000 miles.

What is 7.3L Powerstroke Engine?

The 7.3L Powerstroke diesel engine was a Ford game-changer in the mid-1990s. It was developed by Navistar and released in 1994.

It took five years for the initial 210 horsepower and 425 pound-feet of torque produced by the electronically/hydraulically fueled (poppet-valve and HPOP injectors) fixed-geometry turbocharged engine to be replaced by the 275 hp and 525 pound-feet of torque produced by the final 7.3L model year in 2003 after a five-year run of upgrades and upgrades.

Ford switched from the 7.3L to the 6.0L Navistar diesel in the middle of 2003.

Designed with four-valve heads, enhanced electronic fueling (higher pressure and spool-valve injectors) as well as an EGR system, the current Power Stroke engine was stronger (325hp/ 560 lb-ft of torque) while complying with more stringent emissions regulations that were expected in 2004 and beyond (lower NOx).

Features of 7.3L Powerstroke Engine 

  • Two-valves per cylinder OHV
  • Single Cam
  • Hydraulic Lifter
  • (HEUI) Hydraulic Electronic Unit Injection
  • Direct injection
  • (Under valve cover) HEUI
  • (’94.5-‘99), Bosch 15-degree
  • (’99.5-‘03) Bosch 17-degree
  • (’94.5-‘99), Garrett TP38 fixed geometry
  • (’99.5-‘03) Garrett GTP38
  • (’99-‘03) Air-to-air
  • 3,000 rpm 210hp (’94.5) – 2,800 rpm 275hp (‘03)
  • 2,000 rpm 425 lb-ft (’94.5) to 525 lb-ft at 1,600 rpm (‘03)
  • Six head bolts/cylinder – cast-iron (with sharing)

 7.3 Powerstroke Reliability

In terms of Diesel engines, the 7.3L Power stroke is among the list of the most reliable on the market.

Even Duramax fantastic and the die-hard Cummins have all acknowledged its widespread popularity because of its reliability.

Consequently, they are among the most sought-after diesel engines on the market today. How in demand is this product?

Even with 200,000 miles on the odometer, a used 7.3L Powerstroke engine costs upwards of $10,000. That’s a lot of money to spend on a truck that’s 20 years old.

It’s still worth it, according to most people, though. If there is a truck you should consider when hunting for your diesel and on a tight budget, this truck is this one.

During my 123,000 miles on my truck, I didn`t have many troubles with my 7.3L engine and don’t recall it having nearly as many problems as the 6.0L.

There seems to be a significant discrepancy in their reliability, but maybe it’s simply because I’ve been out of action for a while.

The fact that I won’t be towing keeps me from getting a diesel again. Other options include using a V8 gasoline engine, which is considered more reliable, as well as an electric motor.

Key Comparison Ford 7.3 Gas vs 6.7 Diesel

You can’t go wrong with Ford Super Duty if you’re looking for maximum power and sturdiness on the Fort Lauderdale roads.

In terms of power, all Ford Super Duty engines have various alternatives, but the 6.7L diesel and 7.3L gas engines are the most powerful.

Karl Klement Ford will help you compare the two most popular Ford Super Duty engines Ford 7.3 gas vs 6.7 diesel to see which one is best for your future heavy-duty project.

Ford 6.7L Turbo Diesel VS Ford 7.3L Gas V8

What matters most when it comes to choosing a Ford Super Duty engine for your vehicle is which option will provide you with the best performance on Springtown’s roads.

As a guide, these are the performance specs for each engine option:

Ford 6.7L Turbo Diesel 

  • Fuel-injection system with a pressure of 36,000 psi
  • Horsepower: 475
  • Torque of 1,050 lb-ft
  • Electric-actuated variable-geometry turbocharger redesigned

 Ford 7.3L Gas V8

  • Variable low-end torque
  • camera synchronization
  • A forged-steel crankshaft and a cross-bolted and four-bolt main bearings cast-iron block
  • 430 hp engine
  • Torque of 475 lb-ft

Both engines are excellent choices for drivers that require a lot of power to get the job done. If you desire a little greater fuel management, the 6.7L diesel engine will outperform the Ford 7.3L gas engine.

6.2L Gas V-8 Engine Vs. 6.7L Diesel Powerstroke V-8 Engine Vs. 7.3L Gas Powered V-8 Engine

If you want a 2021 Super Duty Pickup truck from Ford, there are three alternative powerplant options.

Although it’s the least powerful, it’s a straightforward, hard-working vehicle that can serve as a fleet vehicle. The third choice is a 7.3L “Godzilla” V-8, which is a newer model.

Even while this isn’t the familiar 7.3L Powerstroke, the 6.2L V-8 provides more power and is easier to maintain than the 6.2L V-8.

For fleets or those who desire more performance than just the base 6.2 V-8 can provide, this is a wonderful choice. The 6.7L Power stroke is the third and last choice.

When it comes to haulers and other folks who need a lot of power, look no further than this.

Diesel engines such as the 6.7L Power stroke have built a name for themselves in the last decade as among the most dependable and powerful.

Which One is Perfect?

Two Power Strokes have been revered more than any other, and now it’s time to put them head-to-head in an epic showdown: the 7.3L vs the 6.7L.

The 7.3L has a long history of being regarded as an engine with the capacity to last a lifetime. The 7.3L was loud, slow, and underpowered—especially in comparison to today’s standards.

It’s time to meet the 6.7L Powerstroke, with its adjustable geometry turbocharger, air-to-water intercooler, and CGI block.

It’s more quick, powerful, and dependable than the 6.4L and 6.0L engines it replaces. Problems with the first-generation turbo and with emissions are, on the other hand, a common complaint.

Frequently Asked Questions

In Your Opinion, What Would Be the Advantages and Disadvantages of this Option?

Towing will be my primary purpose for this vehicle; therefore, I’ll likely go with the diesel. Filling up while towing is a huge benefit of diesel engines.

Typically, the diesel pumps offer additional space for trailers or may be accessed directly from the truck spaces. Filling up my gasser F150 while towing was always a hassle for me.

What Is the Major Downside of the 6.7L Powerstroke Engine? 

The 6.7L worst-case scenario is a turbocharger failure. Early turbochargers, like the small GT32 SST, used ceramic bearings that were susceptible to premature failure, making them difficult to manufacture.

Newer engines feature a second turbocharger unit with a stronger turbo shaft bearing made of steel ball. So far, most turbo failures have been recorded on vehicles from 2011 and 2012.

How Can You Qualify the 6.7L Power Stroke Engine?

Ford’s 6.7L V-8 Power stroke is among the most advanced and powerful diesel engines currently being produced for heavy-duty trucks.

In the Ford 6.7L Trucks, Cab & Chassis Trucks, it is the top-of-the-line powertrain option.

Combined with the 6.7L Power Stroke V-8 Diesel and the 10R140 10-Speed automatic gearbox engine, the F-250, F-350, and F-450s of the 2021 Ford Superduty trucks can reach 1050 lb-ft of torque and 475 horsepower.


By now you should that the comparison of Ford 7.3 gas vs 6.7 diesel is straightforward. The new 2022 Ford 6.7L for 2022 has a formidable engine line-up.

The V8 pushrod 7.3L gas engine is built to withstand the rigors of everyday use. And the third-generation Power Stroke V8 Diesel Engine is more powerful than ever before.

TorqShift 10-speed automatic gearbox is used to connect both vehicles. As a result, hauling and towing is no problem no matter what fuel type you opt for.

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