This wasn’t just a Mustang with a big engine—it was a re-engineered machine with a singular mission: go fast, stay fast. From day one, the Boss 429 was a unicorn. Ford only built 859 units in ...

Ford Mustang Boss 302 was a winner on the racetrack and showroom, providing the template for all Mustangs that followed.

Even with a blank check, you'd be hard-pressed to find a vintage Mustang ... race their new engine in NASCAR. The 429 was meant to outshine Chrysler's 426 Hemi. Around 900 Boss 429 street cars ...

Is this the rarest Boss? An all-aluminum Can-Am 429ci. Tasca Ford owned the street with this car. Bring on Hemis and SS 396 Camaros. As one of six pre-production 1969 Ford Mustang Boss 429s ...

While Chrysler installed the 426 Hemi in a variety of production vehicles, Ford shoehorned the Boss 429 into its 1969 Mustang ...

During the era when there was no replacement for displacement, these 5 ponies packed some ridiculously large big-block V8s ...

By 1969, the Ford Mustang could be anything from a dressy six-cylinder coupe to a high-powered Boss 429 fastback with a NASCAR-ready V-8 engine shoehorned under its scooped hood. It’s that ...