Classic Mustangs have become a favorite canvas for six-figure restomod projects, with builders chasing enormous horsepower figures and radical bodywork. Ford decided to take a very different approach with its latest creation, proving that a 60-year-old Fastback doesn’t need four-digit horsepower to be exciting.
Unveiled at the 2026 SEMA Show, the Ford Racing R125 Mustang combines the unmistakable styling of a 1966 Fastback with a thoroughly updated powertrain. You won’t find a supercharger or elaborate widebody conversion here, just a naturally aspirated V8 and a proper manual gearbox.
According to Ford’s official reveal, the R125 was developed to showcase performance components available through Ford Racing Parts. Rather than building an untouchable showpiece, the company wanted a classic Mustang that enthusiasts could actually use and potentially draw inspiration from.
There’s also a historical connection behind the project, as it was built to celebrate 125 years since Henry Ford’s famous racing victory in 1901. That win helped attract the financial backing that eventually led to the founding of Ford Motor Company.
A 347-Cubic-Inch V8 With Modern Fuel Injection
Under the hood sits a 347-cubic-inch (5.7-liter) Ford Racing crate V8 that pumps out 360 horsepower and 400 lb-ft of torque. Based on Ford’s traditional small-block architecture, it features a Boss block and aluminum cylinder heads.
An Edelbrock Pro-Flo electronic fuel-injection system replaces old-fashioned carburetion, promising more consistent starting and everyday drivability. The engine retains the character of a classic American V8 without requiring owners to live with all its original compromises.
A Five-Speed Manual Keeps Things Interesting
Power reaches the rear wheels through a Tremec TKX-600 five-speed manual transmission. Ford says the compact gearbox offers smoother shifting and improved durability compared with the older Tremec TKO.
The combination is refreshingly basic, particularly when many modern performance builds rely on complicated powertrains and automatic transmissions. With 400 lb-ft available and a clutch pedal to operate, the R125 should deliver plenty of old-school involvement, not to mention the ability to light up the rear tires.
Built With Parts Enthusiasts Can Actually Buy
Ford also fitted two-piece Ford Racing valve covers featuring interchangeable tops, captured O-ring seals, and integrated spark-plug wire looms. They’re a small detail, but one that illustrates the emphasis on serviceability and customization.
Crucially, Ford says the featured performance components are available through its parts catalog. That gives enthusiasts a starting point for creating a similar Mustang without depending entirely on bespoke hardware.
A Classic Mustang Meant to Be Driven
Ford describes the R125 as a car intended for use rather than preservation behind museum ropes. Its original Fastback character is central to the project, with the mechanical upgrades aimed at making it more enjoyable on modern roads.
There’s something appealing about a classic Mustang with a responsive V8, a five-speed manual, and no obsession with chasing horsepower records. The R125 looks like the kind of restomod you’d happily drive home from SEMA instead of loading onto a trailer.