1970 Ford Mustang Boss 429

• Largest engine offered in a production Mustang

• Boss 429 engine engineered for NASCAR competition

• Signature chin spoiler, flat black hood scoop, dual-beam headlights, and matching air intakes at each front corner
  

The Ford Mustang Boss 429, produced from 1969 to 1970, is considered amongst the most desirable Mustangs models built. Its attributes include aggressive styling, enormous hood scoop, and massive OHV eight-cylinder engine, the largest ever fitted in a Mustang model. 

The name “Boss” can be credited to President of Ford Motors,  Semon “Bunkie” Knudson. When Larry Shinoda, former GM employee, was developing the Boss 302, it was a secret project. When asked what he was working on, he would say “the boss’s car,” referring to Knudson. The nickname stuck and became synonymous with special issued Ford powerplants.

This Boss 429 engine origins came from Ford’s competition in NASCAR racing. The rules stated that at least 500 regular-production model engines had to be available for sale to the public. However, the rules did not state that the regular-production model body and engine be built together, which allowed Ford to advertise and sell the Boss 429 engine in the Mach 1 Mustang body but also race it in the limited production Ford Torino Talladega body in NASCAR.

Of the 1,358 Boss 429s produced in 1970, the car on display is 1 of only 57 to have left the factory in the Grabber Green color. The interior consisted of “Comfortweave” vinyl bucket seats, simulated teak wood-grained trim, and a Rim-Blow steering wheel.

Specifications:

Engine: V8 429 cu in / 7.03 L, 4-Barrel Holley Carburetor

Transmission: 4-speed manual with Hurst Shifter

Horsepower: 375 hp at 5,200 rpm

Torque: 450 ft lbs at 3,400 rpm

Performance: 0-60 mph 5.1 seconds; Quarter Mile 13.6 seconds; top speed 114 mph