The Boss 429 and 429 Super Cobra Jet V8 engines rank as some of the most powerful engines ever put in the Ford Mustang. In fact, if we limit our discussion to first-gen Mustangs, these engines ...

The Boss 429 was known for being a stand-out model for Ford back in the '60s and '70s. It was purely a homologation model that Ford needed to be able to race their new engine in NASCAR.

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 ...

The Boss 429 was the most potent of the two thanks to a 429-cubic-inch (7.0-liter) V8 rated 375 horsepower. The car was created specifically to homologate the said engine for NASCAR racing.