ford 240 inline 6 specs

Olvin

2 min read

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01-02-2025

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The Ford 240 inline-six engine holds a significant place in automotive history, known for its durability, reliability, and smooth operation. This deep dive explores the specifications, performance characteristics, and lasting legacy of this iconic powerplant.

Ford 240 Inline-6 Engine Specifications: A Detailed Look

The Ford 240 cubic inch inline-six engine, produced from 1965 to 1982, wasn't just one engine; it evolved throughout its production run. Variations existed, resulting in slight differences in specifications. However, several key features remained consistent across most versions:

• Displacement: 240 cubic inches (3.9 liters) – This is the defining characteristic of the engine.
• Configuration: Inline-six – The straight-line arrangement of cylinders contributed to the engine's smooth power delivery and inherent balance.
• Valvetrain: Pushrod OHV (Overhead Valve) – A relatively simple and robust design.
• Fuel System: Carbureted – Early models relied on carburetors, offering a straightforward fuel delivery system. Later versions might have incorporated electronic fuel injection in certain applications.
• Block Material: Cast iron – Known for its strength and durability, making it ideal for long-lasting performance.

Variations and Specific Output: Precise horsepower and torque figures varied depending on the year of production, application (truck, car, etc.), and specific modifications made by Ford. Generally, expect to find power outputs ranging from approximately 110 to 150 horsepower, and torque figures in the 190-210 lb-ft range. This was a workhorse engine, prioritizing reliability and consistent power delivery over peak power numbers.

Key Differences Across Production Years

While the fundamental design remained consistent, there were subtle but important changes across the different model years. These included variations in:

• Camshaft profiles: Modifications to the camshaft influenced the engine's power delivery and overall performance.
• Carburetion systems: Changes in carburetor design and specification affected fuel efficiency and power output.
• Internal components: Improvements to piston rings, bearings, and other internal components over the years contributed to enhanced durability and longevity.

Performance and Handling Characteristics

The Ford 240 inline-six was renowned for its:

• Smoothness: The inline-six cylinder configuration inherently balanced the engine, resulting in a noticeably smoother operation than comparable V-6 or V-8 engines of the time. Vibrations were minimal.
• Reliability: Built to last, the 240 was known for its impressive longevity and resistance to wear and tear. This was a critical factor in its popularity.
• Torque: The engine delivered strong torque at lower RPMs, making it well-suited for towing and hauling applications, common uses in trucks and heavy-duty vehicles.

However, it wasn't without its drawbacks:

• Fuel Efficiency: Compared to modern engines, the fuel economy was relatively poor.
• Power Output: Peak horsepower figures were not particularly impressive, especially when compared to larger V-8 engines.

Legacy and Enduring Appeal

Despite being discontinued decades ago, the Ford 240 inline-six maintains a dedicated following amongst automotive enthusiasts. Its ruggedness, reliability, and simple design make it a popular choice for restorations and modifications. The engine's reputation for durability is a significant part of its enduring appeal. Many owners appreciate the simplicity of maintenance and the readily available parts for these engines.

Conclusion

The Ford 240 inline-six engine represents a significant chapter in Ford's history and the broader automotive landscape. While modern engines may offer superior fuel efficiency and horsepower, the 240's legacy rests on its reliability, smooth operation, and enduring popularity among enthusiasts. Its enduring appeal speaks volumes about the quality and craftsmanship that defined an era of automotive engineering.