This 1970 Ford Mustang Boss 429 was built on October 13, 1969 and assigned Kar Kraft number 2210. The car was originally specified with Grabber Blue paintwork, a white interior, and a 429ci Boss V8 linked with a four-speed, close-ratio manual transmission and a 3.91 Traction-Lok differential as part of the Drag Pack. It was further equipped with Competition suspension, power steering and front discs, 15″ RWL tires, the Convenience and Decor groups, a rim-blow steering wheel, a tachometer, deluxe belts, and an AM radio. Restorative work was performed in the early 2000s, and it acquired by its current owner in 2015. The car was previously offered on BaT in January 2025, and since that time the floors and door bottoms were refinished and an original Boss 429 tachometer was refitted. This Boss 429 is now offered again in North Carolina on dealer consignment by Reserve Motorworks, a BaT Local Partner, with a Deluxe Marti Report, a window sticker, the owner’s manual, and a clean Texas title.
The Boss 429 was offered for the 1969 and 1970 model years in order to homologate the 429 engine for use in NASCAR. Production was completed by Kar Kraft of Brighton, Michigan, and each example was given a serialized number. This car was assigned serial number 2210 and specified in Grabber Blue, and features include a front spoiler, a hood scoop, dual side mirrors, Boss 429 badging, and dual exhaust outlets. The car was repainted in 2004.
The hood is secured by Mach 1-style locks.
The 15″ Magnum 500-style wheels and F60x15 Goodyear Polyglas GT tires were mounted in the mid 2000s. The Boss 429 model was equipped with revised control arms, a higher-rate front anti-roll bar than other Mustang variants, a rear anti-roll bar, and a Competition suspension with staggered rear shocks. Power-assisted brakes with discs up front and drums out back were standard on the 429, with the front brakes reinforced with heavy-duty hubs and rotors as well as oversized spindles. Power-assisted steering was also equipped from the factory.
The cabin features high-back bucket seats and a rear bench upholstered in White Corinthian vinyl with matching Clarion knit accents, and simulated woodgrain appliqués adorn the dash, console, and door panels. Interior appointments include an AM radio, a clock, deluxe seatbelts with a reminder light, and a Hurst shifter. A previous advertisement noted the interior had been re-dyed, and the door tags are reproduction units.
The steering wheel frames a 120-mph speedometer, an 8k-rpm tachometer, and a fuel-level gauge. Stewart-Warner oil pressure and temperature gauges are mounted in the center of the dashboard, and controls for the choke and hood scoop are located on a bracket mounted above the accelerator pedal on the lower dash area. The five-digit odometer shows under 30k miles, approximately 550 of which were added under current ownership.
The lower doors have been refinished in white since the last auction, and an original 429 tachometer was installed.
Kar Kraft was commissioned by Ford to modify Cobra Jet Mustangs with a larger 429ci V8 featuring “crescent”-shaped combustion chambers. It came from the factory with an aluminum intake manifold and a four-barrel Holley 735-cfm carburetor, which was rebuilt in preparation for the sale. Output was rated at 375 horsepower when new, and it is believed the engine was rebuilt in the early 2000s.
The underside was stripped of undercoat on floors, prepped, and cleaned since the last auction. The four-speed manual transmission is linked to an optional 3.91 Traction-Lok differential as part of the Drag Pack.
The Deluxe Marti Report denotes equipment, options, and statistics. Copies of the window sticker are displayed in the gallery.