Unearthing the Rare Gem: 1966 Ford Mustang Fastback K-Code 4-Speed

This 1966 Ford Mustang fastback boasts a K-code 289ci HiPo V8 engine, mated to a four-speed manual transmission, and features an exterior in red complemented by black vinyl upholstery. Its equipment includes driving lights, chrome bumpers, GT badging, front disc brakes, 14″ styled steel wheels, a four-barrel carburetor, an AM radio, a center console, and a column-mounted tachometer and analog clock. The current owner acquired the car in 2020, and subsequent maintenance reportedly involved the installation of Koni shocks, as well as the replacement of the ball joints and A-arms. This Mustang fastback is currently available in California and comes with accompanying literature, previous registration cards, and a clean Idaho title in the seller’s name.

The vehicle’s body was originally completed in Candyapple Red (T) at the factory, and it’s reported that it underwent a repaint roughly two decades ago. It comes equipped with driving lights, black lower body stripes, chrome bumpers, rear quarter louvers, GT emblems, and twin exhaust tips that emerge from the rear valance.

The car features 14-inch styled steel wheels with chrome trim rings, and they are fitted with 205/70 BFGoodrich Silvertown Radial redline tires. Braking duties are managed by front disc brakes without power assistance and rear drum brakes. In 2020, maintenance work reportedly involved the installation of Koni shocks and the replacement of both the upper and lower ball joints and A-arms.

The front bucket seats and the contoured rear bench are upholstered in black vinyl. Notable features include a center console, a remote mirror adjuster, lap belts for all passengers, rubber floor mats, polished door sills, and an AM radio.

The car is equipped with a wood-rimmed steering wheel, which is positioned in front of a column-mounted tachometer and an analog clock. Additionally, it features a 140-mph speedometer and gauges that provide information on fuel level, oil pressure, amperage, and coolant temperature. The odometer has a five-digit display and currently shows 78,000 miles, with about 150 of those miles being added while under the current owner’s possession.

The K-code 289ci Hi-Po V8 was factory rated at 271 horsepower and 312 lb-ft of torque and features a four-barrel carburetor and a chrome air cleaner and valve covers. An oil change was last performed in 2020.

Power is delivered to the rear wheels through a four-speed manual transmission.

The warranty number is consistent with a 1966 Mustang fastback that was built in Dearborn, Michigan and equipped with a K-code 289ci V8. Decoding the trim tag reveals the following information: