The Boss 429 Mustang is one of those halo cars that many kids of the 1970s dreamed of owning, thanks to its outrageous appearance and that NASCAR-derived engine. More than five decades after its debut ...

Introduced in 1969 and retired in 1970, the Boss 429 was Ford’s special engine that needed to be sold in standard passenger cars in order to be allowed to race in NASCAR. The moniker is synonymous ...

Despite winning six straight Manufacturers’ Championships heading into 1969, Ford refused to ease off the gas. So it cooked up the 1969 Mustang Boss 429. Though it never actually raced in NASCAR, the ...

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, both ...

The Boss 429 is an engine first and a Mustang second. Ford built it to make a point on Sunday by bending the rulebook on Saturday. Its semi-hemi 429 was born for NASCAR, and the only way to race it ...

The old saying goes, "There is no replacement for displacement." While modern engine technology proves that logic is fundamentally flawed, it's still fun to remember the inexpensive gasoline and ...

Perception and reality are often widely disparate things. That couldn't be truer than with the legendary Boss 429 Mustang and the semi-hemi engine for which it was named. It is the darling of the ...

(A, B)Boss 429 No. 1, without Boss Id. on fenders or the rear wing, being wrung out in snow at Ford, circa 1968. Among the "Milestone Musclecars" that will eventually appear in this series, the Boss ...