2.7L EcoBoost Vs. 3.5L EcoBoost Vs. 5.0L V8: What Is The Best Ford Engine? [2021 Guide]

Ford trucks are known for their strength, efficiency, and reliability. In this guide, we will examine the features of three of Ford’s high-class engines – the 2.7L EcoBoost, 3.5L Ecoboost, and the 5.0L V8.

The Ecoboost technology has the capability to increase an engine’s longevity and cut down its fuel consumption. Conversely, No Ford fan is new to the raw strength and thumping sound of the 5.0 V8. For decades, drivers have enjoyed the V8’s reliable performance, speed, hauling towing ability.

Which one is the best among these three engine options in 2021? Let’s take a close look at them!

2.7L Ecoboost Vs. 3.5L Ecoboost Vs. 5.0L V8: Comparison Chart

The table below provides an overview of the specs of the three engines. It’s a summary to compare their specific features to help you know which model fits your needs.  

 2.7 EcoBoost3.5 EcoBoost5.0L V8
Horsepower325 HP375 HP395 HP
Torque400 lb-ft470 lb-ft400 lb-ft
Towing8,500 lbs12,000 lbs11,100 lbs
Longevity230,000 miles250,000 miles200,000 miles
Available trimXL, XLT, LariatLimited, RaptorXL, XLT, Lariat, King Ranch, Platinum

2.7L Ecoboost Vs. 3.5L Ecoboost Vs. 5.0L V8: Detailed Comparison

It is natural to be confused while making a choice between the 5.0L V8, 2.5 Ecoboost, and 3.5 Ecoboost. They have been designed to withstand regular and extreme off-road driving situations. Let’s go into the details of the specifications of each engine according to the table above. 

Engine Performance

Winner: 3.5L Ecoboost

It’s not so easy to pick a champion in this category. But we pick the 3.5L Ecoboost. This dual-injection gasoline engine can offer a seamless driving experience and produce fewer greenhouse gases. The 3.5L Ecoboost is reliable enough to power full-sized cars, supercars, pickup trucks, and utility vehicles.

The 5.0L V8 is not too far behind. This 8-cylinder naturally aspirated Aluminum block machine has maintained its solid reputation for decades. It has a higher horsepower rating while the Ecoboost 3.5L boasts of greater torque.

The 2.7L Ecoboost is also not bad at all. It still supplies enough torque and energy for several use cases. It also has a direct-injection design and twin-turbo system like the 3.5L Ecoboost. You can pair all three engines with four-wheel drive or rear-wheel drive. With a few mods and tuners, you can squeeze more power out of any of the three engines.


Winner: 3.5 Ecoboost

The 3.5 Ecoboost has a towing capacity of 12000 lbs. This beast also has the advantage of a larger displacement. Engine displacement is the concentration of fuel/air mixture that an engine can absorb during a full combustion cycle.

However, the V8 is close, with a towing capacity of 11100lbs. This masterpiece also has an impressive payload capacity of about 2120 lbs.

The 2.7L Ecoboost can only tow heavy loads up to 8500 lbs. To support any weight slightly higher on steep terrain, it will have to rely more on its turbo system. The result is the generation of a considerable amount of heat. However, the 2.7 and 3.5 Ecoboost have been designed to withstand sufficient tension while towing.

Fuel Economy

Winner: 2.7 Ecoboost

The 2.7 Ecoboost is arguably the winner in this category. It has an estimated fuel economy of 20 MPG and 26 MPG in the city and highway respectively.

This is because of its lower displacement and horsepower rating. However, the rate of fuel consumption still depends on certain factors. The answer to the questions below influences your fuel economy.

  • What do you do with your vehicle? Do you use it for daily commuting or heavy towing?
  • How aggressive is your driving technique?
  • Is your truck rear-wheel drive or four-wheel drive?  For example, 4WD Ford vehicles are known to have a lower MPG compared to 2WD variants.

Engine Longevity

Winner: 3.5L Ecoboost

The longevity of these three engines is subject to a tight debate. It is not easy to predict the exact lifespan of an engine. Although, these three Ford powerhouses have proven to be reliable without many issues.

With regular maintenance and careful driving, the F150 2.7 Ecoboost can cover 200,000 to 230,000 miles. The 3.7L Ecoboost should be able to reach a mileage of 250,000 miles. You need to use high-quality synthetic oil for both Ecoboost machines.

Regular lubrication will reduce the formation of carbon residue within their combustion system. You need to wash or replace the direct fuel injectors at regular intervals. The spark plugs and transmission fluid also need timely replacement.

As for the 5.0L V8, it should be able to hit a mileage of 200,000 miles. Note that poor driving technique, bulky off-road add-ons, and intensive engine modifications can cut down your engine’s lifespan.

Available Trim

Winner: 5.0L V8

The 5.0L V8 is available on five trim levels – XL, XLT, Lariat, King Ranch, and Platinum. As for the Ford 2.7L, Ecoboost, you can get it on the XL, XLT, and Lariat. The Robust 3.5L Ecoboost is only available on the Raptor and F150 limited edition. The %.0L V8 wins in this category.


Winner: 2.7L Ecoboost

The 2.7L Ecoboost is the best choice if you want to save money. It will still deliver an awesome performance for the price. The 5.0L V8 costs an average of US$2000 while the 3.5L Ecoboost is priced at US$1400.


We will pick the 3.5L Ecoboost as the best among the three engines in 2021. This exclusive machine delivers solid performance because of its high torque, economized fuel consumption, powerful towing ability, and turbocharging technology. It also releases less volume of ozone-depleting emissions.

However, you can’t go wrong with any of these three powerhouses in your F-150 truck. The 2.7L Ecoboost is the best choice for casual driving and good fuel economy. The Legendary V8 is almost equal to the 3.5L Ecoboost.  

Read more: Ford 5.4L vs 4.6L vs 5.0L Engine

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