Vehicle Description
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, the C.J.(Cobra Jet)
and H.O.(BOSS 351). One of the most recognizable features of the
'71-'73 Mustangs is the optional (standard on Boss 351) NACA (NASA)
hood 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 'flappers' at
each scoop, and a fiberglass under-hood 'plenum' that directed
cool, outside air 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 color of the Mach 1 decals and
striping. In addition, all Ram Air-equipped Mustangs of this
generation came equipped with twist-style, chrome-plated hood lock
pins.