The Mustang Boss 302 is a high-performance variant of the Ford Mustang originally produced by Ford in 1969 and 1970. The 1969–70 Boss 302 (Hi-Po) engine was created in 1968 for the SCCA’s 1969 Trans-Am road racing series. Available in the Boss 302 Mustangs of 1969–70, it’s a unique Ford small-block engine featuring a thin-wall, high nickel content block casting.

The Boss 302 Mustang was designed by Larry Shinoda, a former GM employee. The name “Boss” came about when Shinoda was asked what project he was working on, he answered “the boss’s car” because the project was a secret. In addition to a lower ride height, standard equipment included front disc brakes, larger sway bars, heavier duty spindles, reinforced shock towers, a four speed manual transmission, and the solid-lifter Boss 302 V8 engine, with its free-breathing Cleveland style heads, which had valves larger than most engines more than a third larger in displacement.

The 1970 model could accelerate from 0 to 60 mph (97 km/h) in 6.9 seconds, and the quarter mile (~400 m) took 14.6 seconds, reaching a speed of 98 mph (158 km/h).