2015-2021 Mustang Horsepower & Torque Ratings

S550 Mustang Horsepower Numbers

In 2015, Ford celebrated an all-new, sixth-generation Mustang to mark the pony car's 50th anniversary. The S550 platform represented the latest in vehicle technology and was designed from the ground up to foster the international distribution of America's favorite sports cars. Thanks to the Mustang's global configuration, including a right-hand-drive model, the 'Stang was the world's best-selling sports car for 2019.

Let's review the S550 Mustang horsepower and torque details for the 2015-2021 model years. This information is collected from factory and online sources. The engine output specifications cited here are based on new, non-modified engines and exhaust systems. Engine outputs can reduce over time and change due to aftermarket modifications.

If you're looking for more information about the 2015-2021 Mustang, then look no further than our complete breakdown of the S550 article!

2015-2021 GT 2019-2020 Bullitt 2015-2020 GT350 2021-2021 GT500 2021 Mach 1 2015-2021 EcoBoost 2015-2017 V6 Spects Table

S550 Mustang GT

2015-2021 S550 GT Coyote Mustang Horsepower

Despite the automotive industry making a mad dash to vehicle electrification, an 8-cylinder Mustang's continued availability brings comfort to car purists everywhere. While we'll get into special edition Mustangs and accompanying power plants later in this article, let's begin with the performance centerpiece for most sixth-generation Mustang owners—the 5.0L V-8 “Coyote” engine that traces its origins back to 2011. Starting with the S550's debut year of 2015, 5.0 Mustang horsepower hits 435 and torque reaches 400 lb-ft. The improvement over 2014 results from a new crankshaft and lighter connecting rods designed to work at a higher 7,000 rpm redline. Airflow gets better, too, thanks to reworked cylinder heads, valve train, and an intake manifold.

Starting in 2018, a new crankshaft and increased compression ratio—now 12.0:1—help give the 32-valve, dual-overhead-cam Coyote increased output to 460 hp and 420 lb-ft of torque. Redline now reaches 7,500 rpm.

2019 Mustang Bullitt

2019-2020 Bullitt Mustang Horsepower

With a history of successful Bullitt Mustang special editions, Ford launched in 2019 the third Bullitt Mustang in celebration of the 50th anniversary of the namesake Bullitt movie. The company's reveal of the car even featured a live presentation by Steve McQueen's granddaughter. Ford carefully positioned this new Bullitt between the less powerful GT and the more potent Shelby GT350. Starting with the Coyote 5.0L engine, engineers added a new air induction system, powertrain control module, and an intake manifold initially designed for the GT350. An active valve performance exhaust system added to the Bullitt's features. Beating the GT's top speed by eight mph, the Bullitt could top out at 163 mph. Engine output reached 480 hp and 420 lb-ft of torque. These upgrades made the Bullitt, which was also offered for 2020, a tempting option for any Mustang buyer considering the GT. Of course, the Bullitt came in Highland Green paint, or Shadow Black if you prefer.

For those who may be interested in transforming their standard factory Bullitt into a Steve McQueen Edition Bullitt, then be sure to check out our friends over at Steeda Performance Vehicles.

Shelby GT350 Mustang

2015-2020 Mustang Shelby GT350 Horsepower

Following the all-new sixth-generation Mustang launch, Ford announced a significantly upgraded Shelby GT350 would take advantage of the S550 platform. A 2014 company news release highlighted the details of the new GT350, including Ford's desire to make this special edition very track-focused. To achieve this objective, Ford went with a "high-revving, naturally aspirated V-8," according to the project's chief engineer, Jamal Hameedi. He added, "the final product is essentially an all-new power plant unique to GT350 – and one that takes true advantage of the new chassis dynamics of the Mustang platform."

During the GT350 reveal, Ford went into great detail about the one-off characteristics of its "Voodoo" 5.2L V-8. The hand-built engine uses a flat-plane crankshaft to reduce overall engine weight—this allows for faster and higher revs. The crankshaft configuration was a first for Ford and is typically only found in racing-oriented engines or high-end European exotic cars. GT350 owners also enjoy a unique exhaust sound thanks to the engine architecture and quad exhaust setup. Available through the 2020 model year, the Mustang Shelby GT350 is rated at 526 hp and 429 lb-ft of torque. An "R" version offered a de-contented GT350 that was better suited for track purposes.

2020 Mustang Shelby GT500

2020-2021 Mustang Shelby GT500 Horsepower

For those believing the GT350 wasn't good enough or spent time drooling over Hellcat-stuffed Dodges, Ford created the over-the-top Mustang Shelby GT500 for the 2020 model year. To call this special edition "extreme" is an understatement.

The "Predator" 5.2L supercharged V-8 produced supercar-level power at 760 hp and 625 lb-ft of torque. The GT500 is the fastest street-legal Mustang produced by Ford and is the company's most powerful engine ever made. The hand-built engine incorporates a cross-plane crankshaft, modified roots-type supercharger, and high-performance cylinder liners and cylinder heads. Ford has limited the GT500's top speed to 180 mph. According to Road & Track, engineering the car for a 200 mph capability was expensive and unnecessary for track performance. The publication reports a 0-60 time of 3.3 seconds for the GT500.

2021 Mustang Mach 1

2021 Mustang Mach 1 Horsepower

For 2021, Ford said goodbye to the Bullitt and hello to the Mustang Mach 1. Last seen in 2003-2004, this special edition traces its origins to the original Mach 1 from the first-generation Mustang. Matching the Bullitt's output specs, the 5.0L V-8 Mach 1 produces 480 hp and 420 lb-ft of torque and benefits from aerodynamic body upgrades. Together, these enhancements give the Mach 1 a performance boost over the regular Mustang GT.

S550 Mustang EcoBoost

2015-2021 Mustang EcoBoost Horsepower

For 2015, Ford introduced a 2.3L 4-cylinder for the Mustang and possibly bringing back memories of previous-generation models with anemic performance. Other than displacement size, this new Mustang engine has nothing in common with the old Pinto-based four-banger. Instead, this EcoBoost power plant, based on Mazda engine architecture, uses dual overhead cams, a turbocharger, and advanced technology that would put older V-8s to shame. The output is rated at 310 hp and 320 lb-ft of torque. Quite a step up from the last turbo Mustang, a 1986 SVO with 200 hp and 240 lb-ft of torque. For 2018, this engine becomes the base power plant and Mustang torque gets a boost to 350 lb-ft (horsepower stays the same at 310).

Coinciding with Mustang's 55th anniversary in 2020, Ford releases a 2.3L High Performance Package for base models and creates the most powerful 4-cylinder sports car ever offered by an American automaker with output at 330 hp and 350 lb-ft of torque. Combined with upgraded handling elements from the GT Performance Package, the High Performance upgrade offers an affordable excitement for Mustang buyers.

2013 Mustang V6

Improved Performance For Base S197 Mustang Horsepower And Torque

The Duratec 3.7L “Cyclone” V-6 carries over from the previous generation Mustang and becomes the base engine for the S550 Mustang at launch. The engine uses a cast aluminum cylinder block and modern design to produce smooth performance and 2015-17 Mustang horsepower at 300 with 2015-2017 Mustang torque at 280 lb-ft—a solid performer that never generated the excitement of its more powerful stablemates. The V-6 is dropped from the Mustang lineup after 2017 when the EcoBoost 4-cylinder becomes the base engine.

2015-2021 Mustang Horsepower & Torque Ratings

Year(s) Engine Trim HP TQ
2015-2017 3.7L DOHC V6 "Cyclone" Base 300 280
2015-2017 2.3L DOHC 4V Turbo I-4 EcoBoost 310 320
2018-2021 2.3L DOHC 4V Turbo I-4 EcoBoost Base 310 350
2020-2021 2.3L DOHC 4V Turbo I-4 EcoBoost HPP 330 350
2015-2017 5.0L 4V DOHC V8 "Coyote" GT 435 400
2018-2021 5.0L 4V DOHC V8 "Coyote" GT 460 420
2019-2020 5.0L 4V DOHC V8 "Coyote" Bullitt 480 420
2015-2020 5.2L 4V DOHC V8 "Voodoo" GT350/R 526 429
2020-2021 5.2L 4V DOHC V8 S/C "Predator" GT500 760 625
2021 5.0L 4V DOHC V8 "Coyote" Mach 1 480 420

Note: The best effort was made to reference accurate information for this article. There may be small discrepancies among available sources of Mustang engine information.

Source: Ford | Ford Media | Mustang Specs

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