In 1971 the Mach 1 started with a base engine of the 302ci based Windsor V8, that produced 210 bhp.
Up to the 429 cu in (7.0 L) Super Cobra Jet V8 (for 1971 models only) that produced 375 bhp.
There are no major differences in the '71 and '72 Mustangs externally.
A '71 Mustang Mach 1 was featured in the 1971 James Bond film Diamonds Are Forever.
There are no major differences in the '71 and '72 Mustangs externally.
A '71 Mustang Mach 1 was featured in the 1971 James Bond film Diamonds Are Forever.
(wikipedia)
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429 cu in (7.0 L) Super Cobra Jet V8 Mach 1
1971-72 Regular "351" Mach 1
A '71 Mustang Mach 1 was featured in the 1971 James Bond film Diamonds Are Forever
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In 1973, the front bumper was enlarged in accordance with new bumper standards,
and the sportlamps were changed to a vertical orientation at each end of the grill.
(Photos from autowp.ru & imcdb.org)