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  See all Engine products
ACL Nissan 4 E15/E16/GA16/QG18 Standard Size Conrod Bearing Set 83-06 4B1620A-STD - 4B1620A-STD

If you're diving into the world of performance engines, you know that the right bearings can make all the difference. These ACL Race Series Engine Bearings are built for those who push their engines to the limit. With a unique blend of design and metallurgy, they’re crafted to handle the high RPMs that come with serious driving. Whether you're running a 4, 6, or 8-cylinder setup, these bearings are ready to take the heat.

What Makes These Bearings Stand Out?

  • High Strength Overlay: The overlay plate is thinner but tougher, which means better fatigue resistance. You want your bearings to last, and this design helps with that.
  • Hardened Steel Backs: Each rod bearing comes with hardened steel backs. This feature not only supports the bearing lining but also keeps them secure in their housing. No one wants a bearing that slips.
  • Increased Crush: More crush means better retention, so you can trust these bearings to stay put even when the engine's roaring.
  • Heat Transfer: They’ve ditched the flash plating on the back, which helps heat dissipate better. This means cooler bearings and better performance.
  • Eccentricity for High RPMs: Increased eccentricity helps tackle bore distortion at high speeds and aids in forming those all-important hydrodynamic oil films.
  • 3/4 Grooved Main Bearings: These are designed to optimize the load-carrying surface area and oil flow to the conrod bearings. More oil flow means better lubrication.
  • Tight Tolerances: Consistent wall tolerances keep your clearances in check, which is crucial for performance engines.
  • Enlarged ID Chamfers: The edges are chamfered to accommodate larger fillet radii on performance crankshafts. A small detail that makes a big difference.

Specifications You Should Know

  • Model: ACL 4B1620 STD Engine Connecting Rod Bearing Set
  • No Core Charge Required—what you see is what you get.
  • Parts Interchange: 1211111M20STD, 12111 11M20 STD, 05638004533, 056 38004 533—these fit nicely in various applications.

For Nissan enthusiasts, this particular set fits the E15, E16, GA16, and QG18 engines from '83 to '06. If you're looking to upgrade your setup, these bearings are a solid choice. They’re designed to handle the demands of performance without breaking the bank. Trust me, your engine will thank you.

Other Part Numbers:
ACL #acl4B1620A-STD

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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