The Ford F-Series F-250 VIII Regular Cab, equipped with the 4.9-liter (300 cubic inch) inline-six engine producing 150 horsepower and paired with a four-speed automatic transmission and a 4×4 drivetrain, was a mainstay of Ford’s heavy-duty truck lineup from 1988 to 1991. This configuration represented a work-focused, entry-level offering within the eighth generation (1987-1991) of the F-Series, designed for buyers prioritizing capability and durability over outright performance. It served as a popular choice for farmers, ranchers, and tradespeople needing a robust truck for demanding tasks.
Technical Specifications
| Brand | Ford |
| Model | F-Series F-250 |
| Generation | F-Series F-250 VIII Regular Cab |
| Type (Engine) | 4.9 300 Six (150 Hp) 4×4 Automatic |
| Start of production | 1988 |
| End of production | 1991 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 3 |
| Doors | 2 |
| Fuel Type | Petrol (Gasoline) |
| Power | 150 Hp @ 3400 rpm |
| Power per litre | 30.5 Hp/l |
| Torque | 353 Nm @ 2000 rpm / 260.36 lb.-ft. @ 2000 rpm |
| Engine layout | Front, Longitudinal |
| Engine displacement | 4916 cm3 / 299.99 cu. in. |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 101.6 mm / 4 in. |
| Piston Stroke | 101.09 mm / 3.98 in. |
| Compression ratio | 8.8:1 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Max. weight | 3084 kg / 6799.06 lbs. |
| Fuel tank capacity | 69 l / 18.23 US gal | 15.18 UK gal |
| Length | 5339 mm / 210.2 in. |
| Width | 1778 mm / 70 in. |
| Height | 1923 mm / 75.71 in. |
| Wheelbase | 3378 mm / 132.99 in. |
| Wading depth | 869 mm / 34.21 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 | Leaf spring |
| Rear suspension | Leaf spring |
| Front brakes | Disc |
| Rear brakes | Drum |
| Power steering | Electric Steering |
| Tires size | 215/85 R16 |
| Wheel rims size | 6J x 16 |
Powertrain & Engine Architecture
The heart of this F-250 variant was the 4.9-liter inline-six engine, commonly known as the “300 Six.” This engine, a Ford stalwart, had a long history dating back to the early 1960s and was renowned for its exceptional durability and low-end torque. The 1988-1991 version featured a cast-iron block and cylinder head, a relatively simple overhead valve (OHV) valvetrain, and multi-port fuel injection. The multi-port injection system, a significant upgrade from earlier carbureted versions, improved fuel efficiency and throttle response. The engine’s 8.8:1 compression ratio was a compromise between power and reliability, favoring the latter. The four-speed automatic transmission (typically a Ford C6) was chosen for its robustness and ability to handle the engine’s torque output. While not offering the fastest acceleration, the C6 provided smooth shifts and reliable operation under heavy loads.
Driving Characteristics
The F-250 with the 300 Six and automatic transmission wasn’t designed for speed. Acceleration was modest, and passing maneuvers required careful planning. However, the engine’s strong low-end torque made it well-suited for towing and hauling. The automatic transmission’s gear ratios were optimized for work, providing ample pulling power at lower speeds. Compared to the available V8 options (such as the 351 Windsor or 460), this configuration offered significantly less horsepower but a noticeable improvement in fuel economy. The 4×4 system, typically engaged via a manually operated transfer case, provided enhanced traction in off-road conditions or slippery surfaces. The overall driving experience was characterized by a firm ride due to the heavy-duty suspension and leaf spring setup.
Equipment & Trim Levels
The F-250 Regular Cab in this configuration typically represented the base trim level. Standard features included a basic vinyl interior, a simple dashboard layout with minimal instrumentation, and manual windows and locks. An AM radio was often standard, with an optional AM/FM stereo available. Optional extras included air conditioning, a cruise control, and upgraded interior trim packages. The exterior typically featured minimal brightwork, reflecting its work-oriented nature. Buyers could choose from a range of paint colors, but the emphasis was on practicality rather than aesthetics.
Chassis & Braking
The F-250’s chassis was built for durability. It featured a heavy-duty frame and a solid rear axle. The front suspension utilized leaf springs, providing a robust and simple design capable of handling substantial loads. Rear suspension also employed leaf springs. Braking duties were handled by disc brakes on the front axle and drum brakes on the rear. Power steering was standard, making maneuvering the large truck easier, although the steering feel was relatively heavy. The 215/85 R16 tires were chosen for their durability and load-carrying capacity, rather than sporty handling.
Market Reception & Comparison
The 4.9-liter F-250 with the automatic transmission was generally well-received by buyers who prioritized affordability and reliability. Critics acknowledged its lack of performance but praised its durability and ability to handle demanding tasks. Compared to the V8-powered F-250s, this variant offered better fuel economy, although the difference wasn’t dramatic. The 300 Six was known for its longevity, often exceeding 200,000 miles with proper maintenance. The automatic transmission, while not as fuel-efficient as a manual, provided ease of use, particularly for drivers who frequently operated the truck in stop-and-go traffic or while towing.
Legacy
The 4.9-liter inline-six engine and the Ford C6 automatic transmission have earned a reputation for exceptional reliability. Even today, well-maintained examples of this F-250 configuration are sought after by collectors and enthusiasts who appreciate their simplicity and durability. Parts availability remains good, making maintenance relatively straightforward. In the used car market, these trucks typically command reasonable prices, reflecting their age and mileage. However, their reputation for longevity and their ability to perform demanding tasks ensures continued demand. The 300 Six remains a favorite among those who value a robust and dependable powertrain, cementing its place in Ford truck history.
