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 ...

Thus, the Boss 429's 7.0-liter V8 was born. It was on sale for two years only, 1969 and 1970. Aside from the 429ci engine, the Boss Mustang also boasted a reinforced forged steel crank that left ...

By 1969, the Mustang really bared its fangs, and the Boss 302 (along with the ultrarare Boss 429, built for NASCAR competition) did it best. Produced only for the 1969 and 1970 model years ...