1975-1979 Ford F-Series F-150 VI SuperCab 4.9 300 Six (113 Hp) Automatic

The Ford F-Series F-150 VI SuperCab, specifically equipped with the 4.9-liter (300 cubic inch) inline-six engine and a three-speed automatic transmission, was a mainstay of the American pickup truck market from 1975 through 1979. This configuration represented an entry-level offering within the sixth generation of the F-Series, appealing to buyers prioritizing affordability and durability over outright performance. The SuperCab designation indicated an extended passenger cabin, offering increased space compared to the standard cab models. This variant played a significant role in solidifying the F-Series’ position as the best-selling truck in the United States, catering to a broad range of customers from farmers and ranchers to tradesmen and families.

Technical Specifications

Powertrain & Engine Architecture

The heart of this F-150 variant was the 4.9-liter (300 cubic inch) inline-six engine. This engine, known internally as the 300 I6, was a long-stroke design renowned for its durability and low-end torque. It featured a cast-iron block and cylinder head, and utilized a single two-barrel carburetor for fuel delivery. The valvetrain employed a traditional pushrod configuration. While not a powerhouse in terms of peak horsepower (113 hp), the 300 I6 produced a respectable 220 lb-ft of torque, making it well-suited for hauling and towing. The engine’s longitudinal front-engine layout was standard for Ford trucks of this era. The three-speed Cruise-O-Matic automatic transmission was a Ford-built unit, designed to provide smooth and reliable shifting. It wasn’t known for its quickness, but it was a dependable partner for the 300 I6, offering a comfortable driving experience for everyday use.

Driving Characteristics

The 113 hp and automatic transmission combination resulted in a driving experience focused on practicality rather than performance. Acceleration was modest, and passing maneuvers required careful planning. The automatic transmission’s gear ratios were optimized for fuel economy and towing capacity, rather than spirited driving. The 300 I6’s strong low-end torque, however, made it capable of handling moderate loads without excessive strain. Compared to the optional V8 engines (such as the 302 or 351 cubic inch engines), this variant felt significantly slower. Manual transmission versions of the 300 I6 offered slightly better performance and fuel economy, but the automatic provided greater convenience for many drivers. The overall driving experience was typical of a full-size American pickup truck of the 1970s – comfortable, but not particularly agile.

Equipment & Trim Levels

The 4.9-liter/automatic F-150 SuperCab typically fell into the mid-range of Ford’s trim level offerings. Standard equipment included a basic vinyl interior, a simple dashboard layout, and manual windows and locks. The SuperCab configuration added extra rear seating, making it a more versatile option for families or crews. Optional extras included air conditioning, an upgraded radio, power steering, and a sliding rear window. The exterior trim was relatively basic, with minimal chrome accents. Buyers could choose from a variety of paint colors, but the emphasis was on functionality rather than luxury. The interior materials were durable but not particularly refined, reflecting the truck’s work-oriented purpose.

Chassis & Braking

The F-150 SuperCab utilized a body-on-frame construction, providing a robust and durable platform. The front suspension consisted of independent coil springs with a transverse stabilizer bar, offering a reasonable ride quality. The rear suspension employed leaf springs, which were well-suited for carrying heavy loads. Braking duties were handled by disc brakes at the front and drum brakes at the rear. Power steering was often an optional extra, but it was becoming increasingly common. Tire sizes typically ranged from 215/75R15 to 225/75R15, providing adequate traction for most road conditions. The chassis was designed to prioritize strength and durability over handling precision.

Market Reception & Comparison

The 4.9-liter/automatic F-150 SuperCab was generally well-received by buyers seeking an affordable and reliable pickup truck. Critics acknowledged its modest performance but praised its durability and fuel efficiency (relative to the V8 options). Compared to the V8-powered F-150s, this variant offered lower purchase price and better gas mileage, making it an attractive option for budget-conscious buyers. However, it lacked the towing capacity and acceleration of the larger engines. The 300 I6 engine was known for its longevity, and the Cruise-O-Matic transmission was generally considered reliable. This combination offered a good balance of cost, capability, and dependability.

Legacy

The Ford 300 I6 engine has achieved legendary status among truck enthusiasts for its exceptional durability and longevity. Many examples remain on the road today, often with hundreds of thousands of miles on the odometer. The 4.9-liter/automatic F-150 SuperCab is now a popular choice among collectors and restorers, particularly those seeking a classic American pickup truck with a simple and reliable powertrain. While not a high-performance vehicle, it represents a significant piece of automotive history, embodying the work ethic and practicality of the 1970s. The used car market values these trucks for their simplicity, ease of maintenance, and enduring appeal. Finding well-maintained examples is becoming increasingly difficult, but they continue to be sought after by those who appreciate a classic American truck.