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 ...

Among these high-performance big block engines was the legendary 1968 Ford Cobra Jet, a revolutionary powertrain put in higher-end trims of the Mustang ... they made two 429 cubic inch versions ...

Prices shown are the prices you can expect to pay for a 1971 Ford Mustang 2 Door Fastback (429 Ram Air) across different levels of condition. Edit options.