The largest Mustang engine was a whopping 7 liters in displacement. It was known as the Boss 429 engine and was offered late in 1969 and was rated at over 370 horsepower. Ford also offered the Super Cobra Jet version of the 429 which has some changes and upped power to 375 horsepower.

The 428 cubic inch engine was developed by Ford in 1966 to replace the 390 used in the larger cars. 1969 was the first year that Ford installed a 428 cu inch engine in a Mustang. Known as the 428 Cobra Jet engine it used a nodular cast iron block and crankshaft, forged steel piston rods and aluminum pistons. The 428 Cobra Jet used an external oil cooler as well. 

This massive 7 liter engine was offered for one year only in the Mustang. It was very expensive to make and offered less value to the customer than the 428 cubic inch engine. It was dropped after one year and the 428 became the engine of choice for the performance group unless you could afford the "Big Boss".

The first 390 cubic inch (6.4 L liter) V8 Mustang engine was introduced in 1967 as a S-code, 320hp, V8 engine as an option. It was only offered in 1967, 1968 and again in 1969. The engine was the Ford FE Series V8 was introduced to replace the short-lived Ford Y-block engine. The 390, with 390.06 cu in (6.4 L) true displacement, had a bore of 4.05 inches (102.87 mm) and stroke of 3.785 inches (96.14 mm).

The 315 cubic inch "Voodoo" V8 is a future classic. The Voodoo is a 5.2-liter, naturally aspirated V8 engine from used for the Ford Mustang Shelby GT350 and Ford Mustang Shelby GT350R. Featuring a dual overhead cam (DOHC) design, in a V configuration, the Ford Voodoo architecture has been part of the Ford Modular family since 2015. The latest 315 cubic engine is the "Predator" 5.2L V8, handbuilt for the 2020 GT500. 

The Ford Small Block is a series of automobile V8 engines built by the Ford Motor Company beginning in July 1961. The engine was 289 Cubic Inches (4.7 Liter) in displacement. This 289 Cubic Inch V8 was used in the Mustang and was introduced the first year of Mustang production in 1964 as a D-code, 210hp, V8 engine; and a K-code 271 hp High Performance V8 engine. In all there were 11 289ci / 4.7L engine offerings. 

This was the first V8 installed in the Mustang, its block was painted black (paint code 903), heads were blue (paint code 963), and the valve covers and air cleaner were light blue (paint code 958). It was an enlarged version of the previous 221 CID V8 that Ford used in previous cars and the 260 had 164 horsepower.

The 250 cubic inch engine used in the Mustang was the Inline Six 250 and would become the standard engine offered by Ford with their Mustang in 1971 and was rated at the time for 155 hp. The Ford Inline Six 250 is essentially an Inline Six 200 that has had the stroke increased from 3.126 inches to 3.91 inches to get that 4.1 liter displacement.

The 244 cubic inch engine used in the Mustang was the Ford Essex V6 engine which was a 90° V6 engine family built by Ford Motor Company at the Essex Engine Plant. The engine was initially offered in only a 3.8-liter displacement and powered Mustangs from 1983 till 2004. The 3.8–liter V6 was replaced by this 3.9 L version in 2004, though changes were minimal.

In 2011, the 3.7 Cyclone V6 became a standard engine in the Ford Mustang replacing the 4.0L Cologne V6. It was commonly known and marketed as the 3.7L Duratec V6. All Cyclone engines have the same 86.6 mm (3.41 in) stroke. This 227 cubic inch engine was used until Ford discontinued the V6 altogether in 2018 in favor of the 2.3 liter EcoBoost inline four.

The first generation (US market) Ford cologne 2.8L V6 Engine was introduced in Mercury Capri, Mustang II, and Ford Pinto/Bobcat from 1974 to 1978. Cylinder specification is 93.03 mm Bore, 68.5 mm Stroke, 2,792 cc (171 cu in). Timing gears were used in place of a more traditional timing chain and sprockets. In addition to the Mustang II the Cologne V6 also powered the Generation 3 Mustangs in 1979.

170 Cubic inch engine was only used on the early 1965 Mustangs, (often referred to as 1964 1/2). The engine code was "U". Paint color was black (paint code 903)and black heads with orange valve covers (paint code 912) and air cleaner. It was an inline six cylinder single barrel carbureted engine rated at 101 or 105 horsepower depending on who you believe.

The EcoBoost 2.3L is a turbocharged four-cylinder engine used to power compact, midsize and full-size cars, pickup trucks and utility vehicles and work in strict countries with tight emissions standards. Featuring a dual overhead cam (DOHC) design, in an inline configuration, the Ford EcoBoost 2.3L architecture is derived from the Mazda L engine and has been part of the Ford EcoBoost family of turbocharged engines since 2015

Want to research Mustang engines some other way? Check out our other engine pages.