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  See more parts for Nissan 350Z
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ACL Race Series Standard Size Conrod Bearing Set for Nissan VK45/50/56, 2003-2021 - 8B2990HX-STD
ACL Race Series Standard Size Conrod Bearing Set for Nissan VK45/50/56, 2003-2021 - 8B2990HX-STD - Image 2 ACL Race Series Standard Size Conrod Bearing Set for Nissan VK45/50/56, 2003-2021 - 8B2990HX-STD - Image 2

ACL 8B2990HX-STD Race Series Standard Size Conrod Rod Bearing Set

The ACL 8B2990HX-STD is engineered for high-performance applications, specifically designed for Nissan engines. This rod bearing set combines advanced metallurgy with precision engineering, making it a reliable choice for enthusiasts pushing their engines to the limits.

Key Features

  • High-strength overlay plate with reduced thickness enhances fatigue resistance, ensuring longevity under high RPM conditions.
  • Hardened steel backs improve support for the bearing lining, promoting better retention within the housing.
  • Increased crush enhances bearing retention, reducing the risk of movement during operation.
  • Flash plating elimination on the back increases heat transfer efficiency and maximizes grip between the bearings and housing.
  • Increased eccentricity compensates for bore distortion at high RPM, aiding in the formation of hydrodynamic oil films.
  • 3/4 grooved main bearings optimize load distribution and oil flow to conrod bearings.
  • Tight, consistent wall tolerances maintain reliable clearances for optimal performance.
  • Enlarged ID chamfers accommodate larger fillet radii on performance crankshafts, enhancing compatibility.

Specifications

  • Size: STD
  • Oil Clearance: +0.001" Extra
  • Half Type: Identical Halves
  • Material: Tri-metal with hardened steel backs
  • Min Standard Shaft Size: 2.1245 in / 53.962 mm
  • Max Standard Shaft Size: 2.1250 in / 53.974 mm
  • Min Standard Tunnel Size: 2.2441 in / 57.000 mm
  • Max Standard Tunnel Size: 2.2446 in / 57.013 mm
  • Max Wall at Crown: 0.0589 in / 1.495 mm
  • Max Overall Length: 0.720 in / 18.30 mm

Fitment

This rod bearing set is compatible with the following Nissan models:

  • Nissan 350Z (2003-2008)
  • Nissan Armada (2004-2018)
  • Nissan GTR (2009-2021)
  • Nissan Pathfinder (1987-2018)

Other Part Numbers:
ACL #acl8B2990HX-STD

Proposition 65

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

Vehicle
2003-2008
 Nissan 350Z
2004-2018
 Nissan Armada
2009-2021
 Nissan GTR
1987-2018
 Nissan Pathfinder

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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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