1975-1976 Ford F-Series F-150 VI SuperCab 6.4 390 V8 (160 Hp)

The Ford F-Series F-150 VI SuperCab, specifically equipped with the 6.4-liter (390 cubic inch) V8 engine producing 160 horsepower, represents a significant iteration in the long and storied history of Ford’s full-size pickup trucks. Produced for the 1975 and 1976 model years, this variant occupied a middle ground in the F-150 lineup, offering a balance between capability and affordability. It was part of the sixth generation of the F-Series (1973-1979), a generation known for its increased size, improved comfort, and a wider range of configurations, including the introduction of the SuperCab extended cab. This particular engine and body style aimed to provide a workhorse vehicle for both commercial and personal use, appealing to buyers who needed more space than a standard cab offered but didn’t require the higher performance of the larger displacement V8 options.

Technical Specifications

Powertrain & Engine Architecture

The heart of this F-150 variant is the 6.4-liter (390 cubic inch) Ford V8 engine. This engine, designated within Ford’s engine family as the 330 series, was a mainstay of Ford’s truck and large car offerings for many years. The 160 horsepower output was achieved through a two-barrel carburetor, a relatively conservative setup compared to the four-barrel carburetors found on higher-performance 390s. The engine featured a cast iron block and cylinder heads, and a hydraulic lifter valvetrain, contributing to its durability and relatively low maintenance requirements. The 390 cu. in. displacement was achieved with a 4.05-inch bore and a 3.78-inch stroke. The engine’s longitudinal front-engine layout was standard for Ford trucks of this era. The standard transmission was a three-speed manual, although a three-speed automatic transmission was also available as an option. The automatic, a Ford C6, would have altered the driving experience significantly, prioritizing ease of use over outright performance.

Driving Characteristics

The 160 horsepower 390 V8, coupled with the three-speed manual transmission, provided adequate, but not exhilarating, performance for the F-150 SuperCab. Acceleration was modest, and the truck was best suited for hauling moderate loads and cruising at highway speeds. The 3:50 rear axle ratio was common, providing a balance between towing capacity and fuel economy. Compared to the larger 390s or the 302 cubic inch V8, this engine offered less low-end torque, requiring more frequent downshifting when towing or climbing hills. The manual transmission allowed for greater driver control, but the relatively wide gear ratios meant that the engine often operated at higher RPMs, contributing to a noticeable level of engine noise. The SuperCab’s extended cab added weight, further impacting acceleration and fuel economy.

Equipment & Trim Levels

The F-150 SuperCab with the 390 V8 typically came with a fairly basic level of equipment. Standard features included a vinyl bench seat, a basic AM radio, and manual windows and locks. The SuperCab configuration added a rear seat, increasing passenger capacity to six. Optional extras included air conditioning, a more powerful AM/FM radio, upgraded interior trim, and various towing packages. The trim level was generally considered to be mid-range, positioned above the base models but below the more luxurious Ranger XLT trim. The interior was functional and durable, designed to withstand the rigors of daily use. Color choices were typically limited to a range of earth tones and basic solid colors.

Chassis & Braking

The F-150 SuperCab utilized a body-on-frame construction, typical of trucks of this era. The front suspension consisted of independent coil springs with a transverse stabilizer bar, providing a reasonably comfortable ride. The rear suspension employed leaf springs, designed to handle heavier loads. Front brakes were power-assisted discs, while the rear brakes were drums. The braking system was adequate for the truck’s weight and intended use, but lacked the stopping power of more modern systems. Power steering was standard, making the truck easier to maneuver, especially at low speeds. Tire sizes typically ranged from 215/75R15 to 225/75R15, providing a good balance between ride comfort and durability.

Market Reception & Comparison

The F-150 SuperCab with the 390 V8 was generally well-received by buyers who needed a versatile and capable pickup truck. Critics praised the truck’s spacious interior and comfortable ride, but noted that the 390 V8 was not the most powerful engine option available. Compared to the 302 cubic inch V8, the 390 offered more torque, making it a better choice for towing and hauling. However, the 390 was also less fuel-efficient. The larger displacement engines, such as the 390 with a four-barrel carburetor, provided significantly more power but came at a higher price. The 390 V8 offered a good compromise for buyers who wanted a balance between performance and affordability.

Legacy

The 1975-1976 Ford F-150 SuperCab with the 6.4-liter 390 V8 engine has become a popular choice among classic truck enthusiasts. The 390 Ford FE engine is known for its durability and relative simplicity, making it a relatively easy engine to maintain and repair. Parts availability is generally good, although some specific components may be difficult to find. These trucks are often sought after for restoration projects or as daily drivers. While not the fastest or most fuel-efficient F-150 variant, the 390 V8-powered SuperCab represents a solid and reliable workhorse from a bygone era of American truck manufacturing. Today, well-maintained examples command a respectable price in the used car market, reflecting their enduring appeal and historical significance.