1971 Chevrolet Corvette Stingray Convertible â?" 350/270, Muncie 4-Speed, St. Louis Build Why This Car Is Special The 1971 Chevrolet Corvette Stingray Convertible occupies a unique position in C3 history. It was the last model year before GM's compression ratio cuts took full effect across the lineup, and as a result, the 1971 Corvette still carried factory power ratings that buyers in later years could only look back on with envy. The 350ci small block in this car was factory rated at 270 horsepower â?" a number that holds up well even by today's standards for a naturally aspirated engine of this displacement. By 1972, net horsepower ratings replaced gross figures across the industry, and the perception of Corvette performance shifted dramatically. The 1971 model year sits right at the edge of that transition, making it one of the last 'old school' Corvettes before the emissions era fully arrived. Total Corvette production for 1971 came in at 21,801 units across all body styles. Of those, only 7,121 were convertibles â?" exactly the body style you're looking at here. That's a minority of the total run, and convertibles have consistently commanded stronger interest among serious collectors than their coupe counterparts, especially in desirable color combinations. This car was built at the St. Louis assembly plant, which produced all C3 Corvettes from 1968 through 1981. Features List - 350ci 270hp V8 engine - Muncie 4-speed manual gearbox with factory shift pattern plate on console - Positraction rear differential - 4-wheel independent suspension, front and rear - 4-wheel disc brakes - Power steering - Power brakes - Factory dual exhaust with chrome tips - Factory tachometer - Factory 160 mph speedometer - Full gauge cluster: fuel, water temperature, oil pressure, battery - AM/FM radio - Headlight washers - Fiber optic light monitoring system - Factory alternator - Factory hood release (pedal-operated) - Rally wheels with BFGoodrich Radial T/A tires - Blue exterior - White convertible soft top (fold-down) - Blue matching vinyl interior - Factory sport seats - Blue carpet - Center console with storage - Door pull straps - Sport steering wheel with crossed-flags emblem - Crossed-flags hood emblem - Stingray badging - Chrome bumpers, front and rear - Side exhaust vents - Clean undercarriage - St. Louis assembly plant build - 1 of only 7,121 convertibles produced in 1971 Mechanical The engine under this hood is the 350 cubic inch small block V8 in its 270 horsepower factory configuration. This was one of two 350 options available for 1971 â?" the base unit made 270hp, while the LT1 solid-lifter version topped out at 330hp. The 270hp variant used hydraulic lifters, making it smoother and more streetable for daily use, and it paired naturally with the Muncie 4-speed gearbox this car carries. The Muncie name refers to the transmission plant in Muncie, Indiana where GM produced its manual gearboxes, and the Muncie 4-speed was the preferred choice for Corvette buyers who wanted a mechanical connection to the drivetrain without the weight and complexity of the close-ratio race-oriented units. Backing the 4-speed is a Positraction rear differential, which was standard equipment on the Corvette and ensured both rear wheels received power simultaneously rather than spinning the lighter-loaded tire under acceleration. The suspension on all four corners is fully independent â?" a setup the Corvette had used since 1963 and one that distinguished it from virtually every American muscle car of the era, which still relied on solid rear axles. Four-wheel disc brakes were standard on the 1971 Corvette, another significant advantage over most of its contemporaries. The undercarriage photos confirm a clean, solid structure with no visible rot or significant corrosion â?" an important finding on any C3 that has spent decades in service. Additional factory mechanical equipment includes power steering, power brakes, a factory alternator, an