The Ford Mustang Mach 1 is a performance-oriented option package of the Ford Mustang, originally introduced by Ford in August 1968 as a package for the 1969 model year. The Mach 1 title adorned performance oriented Mustang offerings until the original retirement of the moniker in 1978.
As part of a Ford heritage program, the Mach 1 package returned in 2003 as a high performance version of the New Edge platform. Visual connections to the 1969 model were integrated into the design to pay homage to the original. This generation of the Mach 1 was discontinued after the 2004 model year, with the introduction of the fifth-generation Mustang.
Ford first used the name "Mach 1" in its 1959 display of a concept called the "Levacar Mach I" at the Ford Rotunda. This concept vehicle used a cushion of air as propulsion on a circular dais.
In 1971, the Mach 1 started with a base engine of the 302ci based Windsor motor, with a 2 barrel carburetor, followed by four optional 351 Cleveland engines - the 2-V, 4-V (Venturi), the C.J. (Cobra Jet) and H.O. (High Output) BOSS 351. The H.O. was canceled after mid-year 1971, and shortly thereafter the low-compression 351 'Cobra Jet' became available. At the top were two 429ci options, the CJ (Cobra Jet) & SCJ (Super Cobra Jet). Mach 1s, as well as all other Mustang models (except the BOSS 351) were available with the optional CJ and SCJ motors. The SCJ came with a drag pack V or W code rear gears, oil cooler and a different rotating assembly. 429 Super Cobra Jet engines used 780cfm Holley 4-barrel carburetors, while the Cobra Jet engines utilized GM-sourced Rochester Quadra-Jets.
One of the most recognizable features of the '71-'73 Mustangs is the optional (standard on Boss 351) NACA (NASA) hood design with dual scoops. Though available as a visual, non-functional item, they could be made fully functional on models ordered with the Ram Air option, which included vacuum controlled 'flaps' inside each scoop, and a fiberglass under-hood 'plenum' that directed cool, outside air through a modified, rubber-ringed air filter housing and into the carburetor. The ram-air option included a two-tone hood paint treatment in either 'matte black' or 'argent' (matte silver), coordinated to the base color of the Mach 1 and its decals and striping. In addition, all Ram Air-equipped Mustangs of this generation came equipped with twist-style, chrome-plated hood locking pins.
In 1972, the 429CJ & SCJ's were dropped from the lineup, and horsepower dropped across the board due to the switch to new SAE net horsepower calculations. The following year also produced the fewest Mach 1 sales of the 1971-73 generation. There are no major differences in the '71 and '72 Mustangs externally, other than the addition of a "Mustang" script on the right side of the trunk panel (excluding Mach 1). The '72 Mach 1 also saw deletion of the pop-open gas cap, which was replaced with the standard twist-on cap found on the other Mustang models that year. The 302 Windsor remained as the base Mach 1 engine, with the 2 or 4 barrel 351 Clevelands as the only options.
In 1973, the front bumper was enlarged in accordance with new NHTSA standards, and all Mustang models had their sportlamps changed to a vertical orientation at each end of the grille. As the new bumper covered part of the front valance (and therefore the previous turn signal location), the sportlamps also served as turn signals. Both a Mach 1 and base grille were offered, with differing insert patterns.
The rear bumper was also mounted on new impact-absorbing extensions which caused the bumper to protrude from the body further than before, and the 1973 Mach 1 graphics were also changed. Engine options remained the same as in 1972.
Due to trouble getting the Ram Air option approved for emissions reasons, Ford offered an 'exterior decor' option in 1973 that consisted of the two-tone hood treatment, but without the actual functional components of the Ram Air system. Actual engine options available with Ram Air in 1973 were limited to the 351 2V, even though the 351 4V 'Cobra Jet' (without Ram Air) remained optional on every model.
- engine: V8
- capacity: 5800 cc
- horsepower: 270 HP
- gearbox: 4+1
- top speed: 230 km/h
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