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.

The Boss 429 Mustang is all V-8 and no apologies. Only 850 fastbacks were made for the 1969 model year. This example looks to be in fantastic shape and boasts a great color combination.

The lineup now included the Mach 1 and two homologation specials with "Boss" badges. The Boss 429 was the most potent of the two thanks to a 429-cubic-inch (7.0-liter) V8 rated 375 horsepower.

The transmission is a four-speed manual, and there's a limited-slip rear differential out back. The Boss 429 was sold for two model years only, 1969 and 1970. It was built to fulfill NASCAR's rules on ...