Currently listed for sale on AutoHunter is this restored 1968 Buick GS 400 Sport Coupe. As configurated by a previous owner, this is a car Buick should have built as it’s currently powered by a rebuilt 430 V8 from a full-size Wildcat or Electra. It is paired to four-speed manual for bottomless fun. Features include red racing stripe, aftermarket Alpine stereo, aftermarket mags, and more. Painted Regal Black with a white vinyl interior, this “Flint Flyer” is offered by the selling dealer with receipts and a clear title.
The Regal Black paint is complemented by a red lower-body racing stripe. Other features include simulated front fender air extractors, simulated hood scoop, driver-side chrome mirror, and red GS badges on the grille and front fenders. A set of US Mags wheels is wrapped in 235/60 Mickey Thompson Sportsman S/T radials.
The recently upholstered white vinyl interior features bucket seats up front. Mounted on the floor is a Hurst shifter. Other features include aftermarket steering wheel, power steering, AM/FM Alpine stereo with CD player, USB, SiriusXM and Bluetooth compatibility, and aftermarket speaker system.
Instrumentation includes a 120-mph speedometer flanked by a fuel gauge and clock. A Sunpro 8,000-rpm tachometer is mounted on the steering column, and a cluster of Bosch auxiliary gauges (measuring oil pressure, temperature, and voltage) is mounted underneath the dashboard. The odometer shows 81,906 miles, though the title reads mileage-exempt.
The rebuilt 430ci V8 was transplanted from a full-size Buick. It features a four-barrel carburetor atop an Edelbrock intake manifold. Also part of the supporting cast is an MSD ignition. All this is tied to a four-speed manual transmission.
The undercarriage features power front disc brakes and a dual exhaust system.
General Motors had a strange edict that limited cubic-inches depending on the platform—in this case, 400ci was the best an A-body could get from the factory until 1970. However, somebody down the line took a 360-horsepower 430 from a full-size Buick and dropped it in today’s AutoHunter Spotlight, thereby creating a proto-GS 455 of sorts. With solid GM styling and the low-end torque that Buick was famous for, here you have a street bruiser par excellence. Wanna have fun with your classic? Then this 1968 Buick GS 400 Sport Coupe is the car for you, so place your bid before 11:45 a.m. on Wednesday, November 12, 2025 (MST), or you’ll miss out.
Visit the AutoHunter listing for more information and a photo gallery
