Jay Leno Drives Revology’s 710-HP 1969 Mustang Boss 429 Restomod

Revology’s 710-HP 1969 Mustang Boss 429 reinvents an American legend

Photo credit: Jay Leno's Garage

Jay Leno recently tested the Revology 1969 Mustang Boss 429 on an episode of Jay Leno’s Garage, showcasing a modern interpretation of one of Ford’s most iconic muscle cars.

Built by Revology Cars, the vehicle retains the appearance of the original 1969 Boss 429 while incorporating modern engineering, updated chassis technology, and a supercharged Ford Coyote V8 producing more than 710 horsepower.

Revology Reimagines the Boss 429

The original Ford Mustang Boss 429 was created to homologate Ford’s NASCAR engine program. Roughly 850 to 1,000 units were produced, making it one of the rarest and most collectible Mustangs ever built. Despite its legendary status, the original Boss 429 was known for its front-heavy handling caused by the massive iron-block 429 engine.

Revology addressed that issue by replacing the original powerplant with a supercharged Gen 4 5.0-liter Coyote V8 derived from the modern Ford Mustang Dark Horse. The engine features a Roush Performance supercharger system and produces more than 710 horsepower.

According to Revology, dyno testing showed approximately 654 rear-wheel horsepower, translating to roughly 760 horsepower at the crank.

All-New Steel Body and Modern Engineering

Rather than restoring an original shell, Revology builds the car using an all-new steel body engineered with modern manufacturing techniques. The structure incorporates convertible-spec torque boxes, reinforced frame rails, rear shock tower bracing, seam welding, structural adhesive bonding, and improved corrosion protection.

The company designed the entire car in CAD before building the first prototype, allowing engineers to optimize packaging, rigidity, and component fitment. The bonded-glass installation also improves structural stiffness and crash performance compared to the original Mustang.

Improved Handling and Performance

The Revology Boss 429 was engineered to deliver modern sports car dynamics while preserving the feel of a classic Mustang. Power is routed through a Tremec T-56 Magnum XL six-speed manual transmission paired with four-wheel disc brakes, power rack-and-pinion steering, and revised suspension tuning.

The revised setup significantly improves weight distribution. The Revology model achieves a 53/47 front-to-rear balance compared to the original Boss 429’s approximately 57/43 distribution.

The vehicle weighs about 3,980 pounds and rides on 17-inch Magnum 500-style wheels fitted over larger modern brakes. Additional upgrades include LED lighting and a hybrid CAN-bus electrical architecture.

Modernized Interior With OEM-Level Craftsmanship

Inside, Revology retained the classic 1969 Mustang layout while upgrading materials, electronics, and ergonomics. The cabin features genuine walnut trim, a custom Revology steering wheel, Rolls-Royce Arctic White leather upholstery, modern infotainment integration, and a Harman Kardon premium audio system.

The company also redesigned the door latches, window regulators, and switchgear to provide modern functionality and improved durability. Front and rear passengers benefit from three-point seatbelts, while LED interior lighting and power-operated features further modernize the driving experience.

Revology developed a hybrid CAN-bus electrical system that reduces wiring complexity by approximately 75 percent compared to traditional point-to-point wiring.

Revology’s Mustang-Only Focus

Tom Scarpello explained that Revology focuses exclusively on classic Mustangs rather than multiple vehicle platforms. The company currently builds 1967, 1968, and 1969 Mustang models and has delivered roughly 340 vehicles since production began in 2016.

Revology operates from Orlando, Florida, with approximately 160 employees across two facilities totaling 85,000 square feet. The company sells vehicles globally and reports customers in more than 20 countries.

Pricing and Market Position

The Revology Boss 429 starts at approximately $395,000. While the price places it firmly in exotic-car territory, the vehicle is designed as a fully engineered turnkey product rather than a traditional custom build.

The combination of classic Mustang styling, modern performance, updated safety systems, and OEM-level refinement positions the Revology Boss 429 among the most advanced Mustang restomods currently available.

Source: Jay Leno’s Garage