Of course, jamming that engine into a Mustang ... 69 models with the S-code 429, which offered slightly more aggressive internals compared to the T-code units used in 1970. But any original Boss ...

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 ...

Prices shown are the prices you can expect to pay for a 1969 Ford Mustang 2 Door Fastback (Boss 429) across different levels of condition. Edit options.