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  See more parts for Nissan Pulsar
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ACL Nissan CA18/C20 Standard Size High Performance Rod Bearing Set 4B1630H-STD - 4B1630H-STD

ACL Race Series Engine Bearings - 4B1630H-STD

For those of you who are serious about performance, the ACL Race Series Engine Bearings (part number 4B1630H-STD) are engineered to meet the demands of high RPM applications. These bearings are crafted from a unique tri-metal composition that combines advanced design, metallurgy, and engineering to provide the durability and performance you expect from top-tier engine components. Whether you're pushing your Nissan Pulsar or Sentra to its limits, these bearings are designed to keep your engine running smoothly under pressure.

Features

  • High-strength overlay plate with reduced thickness to enhance fatigue resistance.
  • Hardened steel backs on all rod bearings for improved support and retention within the housing.
  • Increased crush for better bearing retention, ensuring your engine components stay in place.
  • Elimination of flash plating on the back to enhance heat transfer and grip.
  • Increased eccentricity to counteract bore distortion at high RPMs, promoting effective hydrodynamic oil film formation.
  • 3/4 grooved main bearings to maximize load-bearing surface area and optimize oil flow to your conrod bearings.
  • Tight, consistent wall tolerances to maintain precise clearances in your engine.
  • Enlarged ID chamfers on bearing edges to accommodate large fillet radii on performance crankshafts.

Technical Specifications

  • Size: STD
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal Hardened Steel Backs
  • Min Standard Shaft Size: 1.7701"
  • Max Standard Shaft Size: 1.7701"
  • Min Standard Tunnel Size: 1.8898"
  • Max Standard Tunnel Size: 1.8903"
  • Max Wall at Crown: 0.0593"
  • Max Overall Length: 0.7323"

Product Fitment

  • Nissan Pulsar: 1987-2005
  • Nissan Sentra: 1982-2018

Customer Feedback

One Nissan Pulsar owner shared, "After installing the 4B1630H-STD bearings, I noticed a significant improvement in my engine's responsiveness, especially at higher RPMs. They fit perfectly and have held up even during my track days." Another Sentra enthusiast mentioned, "These bearings are a game changer! My engine runs smoother, and I have more confidence during hard cornering." With these ACL bearings, you can trust that your engine will perform at its best, mile after mile.

Other Part Numbers:
ACL #acl4B1630H-STD

Proposition 65

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

Vehicle
1987-2005
 Nissan Pulsar
1982-2018
 Nissan Sentra

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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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