1979-1981 Ford F-Series F-250 VII SuperCab 4.9 Six (117 Hp) Automatic

The Ford F-Series F-250 VII SuperCab, equipped with the 4.9-liter inline-six engine and an automatic transmission, represented a work-focused configuration within the seventh generation of Ford’s immensely popular F-Series pickup trucks. Produced from 1979 to 1981, this variant occupied a crucial position in the lineup, offering a balance between capability and affordability for buyers needing a heavy-duty truck without the expense of the larger V8 options. The SuperCab designation indicated an extended passenger cabin, providing seating for up to six occupants – a relatively uncommon feature in the heavy-duty truck segment at the time. This model was primarily sold in the North American market, catering to farmers, ranchers, and tradespeople who required a robust and versatile vehicle.

Technical Specifications

Powertrain & Engine Architecture

The heart of this F-250 variant was Ford’s 4.9-liter (299 cubic inch) inline-six engine, often referred to as the “300 Six” despite its actual displacement. This engine, internally designated as the 300 I6, was a long-stroke design known for its durability and low-end torque. The 1979-1981 version produced 117 horsepower and 308 Nm (227.17 lb-ft) of torque. Fuel delivery was managed by a two-barrel carburetor, a common setup for the era. The engine featured a simple overhead valve (OHV) valvetrain with a single camshaft. The automatic transmission was Ford’s SelectShift, a three-speed unit designed for durability and ease of use. While not offering the performance of the available V8 engines, the 4.9L six provided adequate power for most work-related tasks and offered better fuel economy.

Driving Characteristics

The F-250 with the 4.9L engine and automatic transmission delivered a driving experience focused on practicality rather than performance. Acceleration was modest, and the three-speed automatic transmission prioritized smooth shifts over quick response times. The gear ratios were optimized for towing and hauling, meaning the engine often operated at higher RPMs during highway cruising. Compared to the V8-powered F-250s, this variant felt noticeably slower, especially when loaded. However, the 4.9L engine’s strong low-end torque made it capable of handling moderate loads without excessive strain. The automatic transmission made it easier to drive in stop-and-go traffic compared to the manual transmission options, but it also resulted in some power loss.

Equipment & Trim Levels

The F-250 SuperCab 4.9L Automatic typically came with a relatively basic level of equipment, reflecting its position as a work-oriented truck. Standard features included a vinyl bench seat, basic instrumentation (speedometer, fuel gauge, temperature gauge), and a heater. The SuperCab configuration added extra interior space behind the front seats, offering limited storage or seating for passengers. Optional extras included air conditioning, an upgraded radio, and various trim packages. The interior materials were generally durable and utilitarian, designed to withstand the rigors of daily use. The exterior trim was also fairly basic, with minimal chrome accents.

Chassis & Braking

The F-250’s chassis was a robust body-on-frame construction, designed to handle heavy loads and rough terrain. The front suspension utilized independent coil springs, providing a relatively comfortable ride for a heavy-duty truck. The rear suspension consisted of leaf springs, which were well-suited for carrying heavy payloads. Braking duties were handled by disc brakes at the front and drum brakes at the rear. Power steering was standard, making it easier to maneuver the large truck. The tires were typically 215/85 R16.5 size, providing a good balance of traction and durability.

Market Reception & Comparison

The F-250 4.9L Automatic was generally well-received by buyers who prioritized affordability and fuel economy over outright performance. Critics acknowledged the engine’s durability and low-end torque, but noted its lack of power compared to the V8 options. Fuel economy was a key selling point, as the 4.9L engine consumed less fuel than the larger V8s. Compared to the F-250 models equipped with the 351 Windsor or 460 cubic inch V8 engines, the 4.9L variant was significantly less expensive to purchase and operate. However, it also lacked the towing and hauling capacity of those larger engines. The automatic transmission was praised for its ease of use, but some reviewers noted that it could feel sluggish at times.

Legacy

The 4.9-liter inline-six engine proved to be exceptionally durable and reliable, earning a reputation as one of Ford’s most long-lasting engines. Many examples of the F-250 equipped with this engine are still on the road today, a testament to its robust design. In the used car market, these trucks are often sought after by buyers looking for a simple, reliable, and affordable work truck. While not as collectible as some of the higher-performance F-250 variants, the 4.9L Automatic models represent a significant part of Ford’s F-Series legacy. Maintenance is generally straightforward, and parts are readily available, making these trucks relatively easy to keep running. The combination of durability, affordability, and simplicity continues to make this F-250 variant a popular choice among truck enthusiasts and working professionals alike.