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HomeCarsThese legendary blocks that defy time

These legendary blocks that defy time

In a world where planned obsolescence seems to be the norm, some automotive engines continue to fascinate with their exceptional longevity. These legendary blocks have survived the decades while maintaining unfailing reliability, delighting enthusiasts and drivers looking for durability. Discover the secrets of these exceptional engines that have marked the history of the automobile.

The Toyota 2JZ-GTE: the eternal Japanese straight-six

Among the most iconic engines in automotive history, the Toyota 2JZ-GTE holds pride of place. This 3.0-liter inline six-cylinder, fitted in particular to the legendary Supra, is renowned for its ruggedness in all conditions.

Originally designed to develop 280 horsepower, this block can easily reach much higher powers without compromising its reliability. Prepared examples have exceeded the 1000 horsepower mark while retaining the original block. This ability to withstand extreme constraints has earned it a place of choice in tuning culture and motor sports.

The Volkswagen Type 1: simplicity serving longevity

At the opposite end of the performance spectrum is the Volkswagen Beetle's engine. This small, air-cooled flat-four, with an initial displacement of just 1.1 liters, powered millions of vehicles for over 60 years.

Its minimalist design, with a reduced number of moving parts, makes it a model of reliability. Many examples have exceeded a million kilometers without major overhaul. Its simplicity also allows easy repairs, even for an informed amateur, thus contributing to its exceptional longevity.

The Mercedes-Benz OM617: the indestructible diesel

In the field of diesel engines, the Mercedes-Benz OM617 has established itself as an absolute benchmark in terms of reliability. This 3.0-litre five-cylinder in-line engine, produced from 1974 to 1991, equipped many models of the brand with the star.

Its robust construction, with a cast iron block and an aluminum cylinder head, allows it to withstand astronomical mileages. It is not uncommon to see examples that have traveled more than a million kilometers without major intervention. Its flexibility and generous torque also make it a pleasant engine to use on a daily basis.

The BMW M20: the Bavarian stallion

BMW also has its place in this list with the M20 engine. This in-line six-cylinder, produced from 1977 to 1993, powered numerous models of the brand, including the famous Series 3 and Series 5.

Renowned for its smooth operation and its frank revs, the M20 also stands out for its unfailing reliability. Its robust design allows it to withstand high mileages without flinching. In addition, its relative mechanical simplicity makes it easy to maintain, contributing to its longevity.

The Honda B18C: the high-performance four-cylinder

Honda has built its reputation on compact and efficient engines, of which the B18C is a perfect example. This 1.8-liter four-cylinder, fitted in particular on the Integra Type R, combines high performance and exceptional reliability.

Capable of reaching more than 8000 rpm in series, this block supports high speeds without flinching. Its careful design, with high quality materials, allows it to maintain its performance even after hundreds of thousands of kilometers. Many enthusiasts still use it today in competition, proof of its robustness.

The secrets of longevity

These exceptional engines share several characteristics which explain their extraordinary longevity:

  • A careful design, prioritizing the quality of materials and machining precision.
  • Generous tolerances, allowing better resistance to wear.
  • Oversizing of certain critical components, such as crankshaft bearings.
  • Effective lubrication, ensuring optimum protection of moving parts.
  • Controlled thermal management, limiting constraints linked to temperature variations.
  • The impact on the automotive industry

    The reputation of these indestructible engines has had a significant impact on the automotive industry:

  • They helped to forge the brand image of their manufacturers, associated with reliability and quality.
  • They have influenced the design of modern engines, serving as a benchmark in terms of durability.
  • They have created a vibrant second-hand market, with some models equipped with these blocks retaining a high value despite their age.
  • The challenges of modernity

    Despite their undeniable qualities, these legendary engines face several challenges in the current context:

  • Increasingly strict emissions standards make it difficult to use them without significant modifications.
  • The quest for ever higher performance pushes manufacturers to adopt complex technologies, potentially less reliable in the long term.
  • The growing electrification of the automobile fleet calls into question the future of thermal engines, even the most robust.
  • Legacy for future generations

    Although the era of these indestructible engines appears to be coming to an end, their legacy will endure:

  • They continue to inspire engineers in designing durable and high-performance engines.
  • They fuel a culture of restoration and preservation of classic vehicles.
  • They serve as the basis for electric conversions, allowing old cars to adapt to current environmental challenges.
  • These legendary engines, true mechanical masterpieces, will remain engraved in the history of the automobile. Their exceptional longevity testifies to the know-how of the engineers who designed them and the passion of the motorists who have maintained them over the decades. As the automotive industry looks toward an electrified future, these legendary blocks remind us that durability and reliability are timeless values, essential to creating truly exceptional vehicles.

    SRQ Backlot