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ACL High Performance Main Bearing Set 0.025 Oversized for Nissan L16E/L18E 68-74 1595cc/1770cc - 5M1172H-.025

ACL 5M1172H-.025 High Performance Main Bearing Set

The ACL 5M1172H-.025 is engineered specifically for the Nissan L16E/L18E engines, offering a reliable solution for high-performance applications in the 1595cc and 1770cc 4-cylinder configurations produced between 1968 and 1974. This oversized main bearing set is designed to meet the demands of enthusiasts seeking durability and performance under increased RPM conditions.

Key Features

  • Trimetal Construction: The unique metallurgy combines a high-strength overlay plate with a reduced thickness, enhancing fatigue resistance for extended engine life.
  • Hardened Steel Backs: All rod bearings feature hardened steel backs, providing superior support and retention of the bearing lining within the housing.
  • Improved Bearing Retention: Increased crush enhances the grip of the bearings, ensuring they remain securely in place during operation.
  • Optimized Heat Transfer: The elimination of flash plating on the back of the bearings promotes better heat dissipation and maximizes the interface between the bearings and their housing.
  • Enhanced Eccentricity: Designed to compensate for bore distortion at high RPMs, this feature aids in the formation of hydrodynamic oil films, ensuring optimal lubrication.
  • 3/4 Grooved Design: The main bearings are equipped with a 3/4 grooved layout, which optimizes the load-carrying surface area and enhances oil flow to the connecting rod bearings.
  • Tight Wall Tolerances: Consistent wall tolerances are maintained to ensure precise clearances, crucial for high-performance applications.
  • Enlarged ID Chamfers: Where necessary, the bearing edges are chamfered to accommodate larger fillet radii found on performance crankshafts.

Specifications

  • Size: 0.025 Oversized
  • Fitment: Designed for Nissan L16E/L18E engines, 1595cc and 1770cc, produced from 1968 to 1974.

The ACL 5M1172H-.025 main bearing set stands out in the competitive landscape of high-performance engine components, providing the reliability and engineering excellence necessary for demanding driving conditions.

Other Part Numbers:
ACL #acl5M1172H-.025

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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Who is ACL?

ACL is a company that specializes in manufacturing and distributing high-quality engine bearings that have played a key role in the Australian automotive parts market. 

Based in Launceston, Tasmania, Australia, the company has been in the business for more than 70 years and has become the leading brand when it comes to its market segment.

Throughout the years, ACL has consistently provided top quality products and has become the equipment supplier of multiple Automotive brands such as Lancia, Mazda, Mini, Mitsubishi, Nissan, Peugeot, Subaru, Toyota, Volvo, Suzuki, Renault, SAAB, and more.  ACL also provides a replacement product range used by the aftermarket industry.

The company ensures that it maintains its high level of standard by employing manufacturing processes that are ISO certified. They also use the industry’s most advanced tooling equipment and designing software that allows them to create products that are superior in quality. ACL has been known worldwide to create bearings that are durable, innovative, and precise.

ACL also offers bearing used for high-performance applications. The company has been involved in motorsport racing since the 1960s and has manufactured bearings used in Brabham Formula 1. Today, their products are being used in different racing disciplines such as the Australian Supercar Championship, Drag racing, Driftings, and Rally.

Purchase ACL Bearings at Vivid Racing

Engine Bearings are a critical component of a vehicle and should not be overlooked. If you want to make sure that what you get is something you could rely on, then ACL is the brand for you. With over 200 engine applications, whether it’s an American, Australian, European, or Asian made vehicle, ACL got you covered. Visit Vivid Racing and check out their list of bearings that would fit your specific needs.

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