The Ford F-Series F-150 VIII SuperCab, specifically equipped with the 4.9-liter inline-six engine producing 145 horsepower and paired with a four-speed automatic transmission and four-wheel drive, represents a significant iteration of America’s best-selling vehicle. Produced from 1986 to 1991, this configuration occupied a crucial position in the F-Series lineup, offering a balance of capability, affordability, and practicality for a broad range of buyers. This variant was aimed at customers needing a versatile truck for work and personal use, without the expense of the more powerful V8 options.
Technical Specifications
| Brand | Ford |
| Model | F-Series F-100/F-150 |
| Generation | F-Series F-150 VIII SuperCab |
| Type (Engine) | 4.9 300 Six (145 Hp) 4×4 Automatic |
| Start of production | 1986 |
| End of production | 1991 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 6 |
| Doors | 2 |
| Fuel Type | Petrol (Gasoline) |
| Power | 145 Hp |
| Power per litre | 29.5 Hp/l |
| Torque | 359 Nm / 264.78 lb.-ft. |
| Engine layout | Front, Longitudinal |
| Engine displacement | 4916 cm3 / 299.99 cu. in. |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Max. weight | 2835 kg / 6250.11 lbs. |
| Fuel tank capacity | 144 l / 38.04 US gal | 31.68 UK gal |
| Length | 5898 mm / 232.2 in. |
| Height | 1880 mm / 74.02 in. |
| Wheelbase | 3937 mm / 155 in. |
| Wading depth | 843 mm / 33.19 in. |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 4 gears, automatic transmission |
| Front suspension | Independent coil spring |
| Rear suspension | Leaf spring |
| Front brakes | Disc |
| Rear brakes | Drum |
| Power steering | Electric Steering |
| Tires size | 235/75 R15 |
| Wheel rims size | 6J x 15 |
Powertrain & Engine Architecture
The heart of this F-150 variant is the 4.9-liter (299 cubic inch) inline-six engine, often referred to as the “300 Six.” This engine, a mainstay of Ford trucks for decades, is renowned for its durability and low-end torque. The 145 horsepower output was achieved through a multi-port fuel injection system, a significant upgrade from the carburetor setups of earlier years. The engine’s robust cast-iron block and simple valvetrain design contributed to its longevity. The four-speed automatic transmission (typically a Ford C6) was chosen for its reliability and suitability for truck applications. While not offering the quickest acceleration, the C6 provided smooth shifts and adequate performance for most tasks. The transmission was geared towards maximizing towing capacity and fuel efficiency, rather than outright speed.
Driving Characteristics
Behind the wheel, the 1986-1991 F-150 SuperCab with the 4.9L and automatic transmission delivers a driving experience focused on practicality and dependability. Acceleration is modest, with 0-60 mph times likely in the 12-14 second range. However, the engine’s strong low-end torque makes it well-suited for hauling loads and navigating challenging terrain. The automatic transmission’s gear ratios are optimized for towing and climbing, but can feel somewhat sluggish during quick acceleration. Compared to the available 5.0L V8 or 351 Windsor V8 options, this configuration offers significantly less horsepower and quicker acceleration. However, it provides a noticeable improvement in fuel economy and a simpler, more robust powertrain. The 4×4 system, typically engaged via a floor-mounted lever, provides enhanced traction in off-road conditions and inclement weather.
Equipment & Trim Levels
The F-150 SuperCab in this configuration typically came standard with features like a basic AM radio, vinyl upholstery, and manual windows and locks. The SuperCab body style offered extended rear seating, providing more passenger space than the standard cab. Optional extras included air conditioning, a better stereo system, cruise control, and upgraded interior trim. The trim level, often denoted by badges and interior appointments, could range from basic XL models to more luxurious XLT trims. XLT models typically featured upgraded upholstery, carpeting, and exterior trim. Power steering was a common option, enhancing maneuverability, especially with the truck’s considerable size and weight.
Chassis & Braking
The F-150 VIII SuperCab utilized a body-on-frame construction, providing a robust and durable platform. The front suspension featured independent coil springs, offering a relatively comfortable ride. The rear suspension employed leaf springs, designed to handle heavy loads. Braking duties were handled by disc brakes in the front and drum brakes in the rear. Power-assisted steering was often included, making the truck easier to maneuver. The 235/75R15 tires provided a good balance of on-road comfort and off-road traction. The chassis was designed to prioritize load-carrying capacity and durability over sporty handling.
Market Reception & Comparison
The 4.9L/automatic F-150 SuperCab was generally well-received by buyers seeking a capable and affordable truck. Critics praised the engine’s reliability and the truck’s overall practicality. However, some noted the lack of power compared to V8-equipped models. Fuel economy was considered reasonable for a full-size truck of the era, typically ranging from 12-16 mpg in combined driving. Compared to the 5.0L V8, the 4.9L offered better fuel economy but significantly less power. The 351 Windsor V8 provided even more power but at the expense of fuel efficiency. This 4.9L automatic configuration appealed to buyers who prioritized reliability, affordability, and fuel economy over outright performance.
Legacy
The 4.9-liter inline-six engine and the Ford C6 automatic transmission have proven to be remarkably durable powertrains. Many examples of these trucks are still on the road today, a testament to their robust construction. In the used car market, these F-150s are often sought after by those looking for a simple, reliable, and affordable truck. While not as collectible as some of the higher-performance F-150 variants, the 4.9L/automatic models represent a significant part of Ford’s truck heritage. Maintenance is generally straightforward, and parts are readily available. The 300 Six is known for its ability to withstand high mileage with proper care, making it a popular choice for those seeking a long-lasting work truck.
