Image Credit: Garage Kept Motors LLC / YouTube.The early 1970s produced plenty of desirable American muscle cars, yet some combinations are considerably harder to find than others. Take a big-displacement V8, pair it with a four-speed manual, and then remove the roof, and production numbers tend to shrink rather quickly.That formula gets particularly interesting when applied to an Oldsmobile 442. By 1971, the muscle-car era was beginning to change, yet Oldsmobile was still willing to put its enormous 455-cubic-inch Rocket V8 into one of the most recognizable performance cars of the period. The example pictured here adds another ingredient that should appeal to collectors who prefer changing gears themselves.It also comes from an important point in 442 history, as 1971 marked the final model year in which it was offered as a standalone model before returning to option-package status.AdvertisementAdvertisementThis particular car is currently sitting in the inventory of Garage Kept Motors in Grand Rapids, Michigan. It isn't completely factory-original, but its combination of period hardware, documented drivetrain details, and open-air muscle makes it difficult to ignore.A 455 Rocket V8 Lives Under The HoodImage Credit: Garage Kept MotorsPower comes from Oldsmobile's 455-cubic-inch Rocket V8, which was standard equipment across the 442 range for 1971. In base specification, the engine was rated at 340 horsepower using the gross horsepower measurement employed at the time.Garage Kept Motors says the engine block casting number corresponds with the car's VIN, while the cylinder-head casting number identifies the heads as 1971 455 components. The engine has also received several modifications, including an Edelbrock intake manifold, headers, and dual exhaust.A Ram Air hood completes the performance-oriented appearance. The 455's relatively modest 8.5:1 compression ratio reflected an industry already adapting to lower-octane fuel and changing emissions requirements, making the 1971 model an interesting snapshot of America's rapidly changing muscle-car era.The Muncie Four-Speed Makes It Particularly DesirableImage Credit: Garage Kept MotorsThe big V8 is connected to a Muncie M20 wide-ratio four-speed manual transmission. According to the seller, its identification indicates an April 14, 1971 date, while a Hurst shifter provides the all-important connection between the driver and gearbox.AdvertisementAdvertisementThat transmission is also what makes this particular 442 potentially much rarer than the average convertible. Garage Kept Motors says 1,304 Oldsmobile 442 convertibles were produced for 1971, with just 183 reportedly equipped with the four-speed manual.Those production figures are attributed by the dealer to enthusiast records rather than factory documentation presented with the listing, so they're best treated accordingly. Even without leaning heavily on an exact rarity figure, a 455-powered 442 convertible with three pedals certainly isn't an everyday sight.It Wasn't Originally This Shade Of RedImage Credit: Garage Kept MotorsThe exterior now wears Matador Red, creating a striking contrast against the white cabin and matching white power-operated convertible top. That wasn't how this Oldsmobile left the factory, however, as the listing states its original exterior color was Lime Green.Changing the original color may matter to collectors prioritizing factory specifications, although it's difficult to argue with the current combination visually. The red bodywork, white interior, and classic convertible proportions give the Oldsmobile exactly the sort of presence expected from an early-'70s muscle car.AdvertisementAdvertisementSuper Stock III wheels wrapped in BFGoodrich raised-white-letter tires finish the look. The tires were reportedly purchased in August 2022, while the odometer currently shows approximately 70,400 miles.The 1971 Oldsmobile 442 Is Priced At $61,900Image Credit: Garage Kept MotorsGarage Kept Motors is asking $61,900 for the convertible. That's a substantial amount of money for any 55-year-old Oldsmobile, making the documented drivetrain details and overall condition particularly important for a prospective buyer to investigate.The car's modifications and color change also mean it shouldn't simply be presented as an untouched factory survivor. What it offers instead is an appealing mixture of desirable original-era hardware and carefully chosen performance upgrades.There is also historical significance to the model year. The 442 had become its own model for 1968, but after 1971 the famous badge once again became an option package, closing a relatively brief chapter in Oldsmobile's performance history.AdvertisementAdvertisementFor someone who wants their classic muscle with a giant V8, a manual transmission, and no permanent roof overhead, this 442 checks some unusually desirable boxes. Whether those boxes make it worth $61,900 is now up to whoever wants to put this Matador Red Oldsmobile in their garage.If you want more stories like this, follow Guessing Headlights on Yahoo so you don't miss what's coming next.