1971 Porsche 914/6 ‘M471’
Among the rarest variants of Porsche’s mid-engine sports car, the 914/6 M471 was a factory competition package offered quietly in a March 1971 sales bulletin titled “The Competition Option Group.”
Its purpose was direct: homologate the 914/6 for SCCA C Production racing. Porsche produced just 23 of these street-specification examples.
The M471 package brought steel GT-style fender flares, a steel GT front valance, fiberglass rocker panels, 21 mm wheel spacers (0.83 inches), and 6×15 Fuchs alloy wheels, giving the car a noticeably more aggressive stance than a standard 914/6. GT-specification anti-roll bars were fitted front and rear.
Power came from the same 2.0-liter (121 cubic inch) air-cooled flat-six shared with the 911T, rated at 110 horsepower (SAE gross), sent through a five-speed transaxle. The mid-engine layout that defined the 914/6’s handling character was carried over unchanged, with four-wheel independent suspension and disc brakes at all four corners.
Alongside the 23 M471 street cars, Porsche also produced 16 factory-built 914/6 GT competition cars (internal designation often associated with M491) and made GT conversion components available through dealers for competition use.
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