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ACL Toyota 7AFE 1.8L Standard Size Rod Bearing Set 1993-1997, Tri-Metal Design - 4B1680A-STD

ACL Race Series Engine Bearings - 4B1680A-STD

When it comes to maximizing the performance of your engine, the ACL Race Series Engine Bearings (part number 4B1680A-STD) offer a unique blend of advanced design, high-quality metallurgy, and precision engineering. These bearings are specifically crafted for high RPM conditions, making them a perfect fit for a variety of popular 4, 6, and 8-cylinder applications. Whether you're a weekend warrior or a dedicated track enthusiast, these bearings are designed to meet the demands of serious drivers.

Fitment

These bearings are compatible with a range of vehicles, ensuring that you get the right fit for your engine. Always verify your specific year, make, and model to ensure optimal performance.

Features

  • High strength overlay plate with reduced thickness for improved fatigue properties, enhancing longevity and reliability under stress.
  • Hardened steel backs on all rod bearings enhance support for the bearing lining, ensuring they stay securely in place during operation.
  • Increased crush for better bearing retention, keeping your engine running smoothly even at high RPMs.
  • Elimination of flash plating on the back of the bearings improves heat transfer and maximizes grip between the bearing and housing.
  • Increased eccentricity compensates for bore distortion at high RPM, helping to form hydrodynamic oil films that protect your engine.
  • 3/4 grooved main bearings optimize load-carrying surface area and enhance oil flow to the connecting rod bearings.
  • Tight, consistent wall tolerances help maintain precise clearances, which is critical for performance engines.
  • Enlarged ID chamfers on bearing edges accommodate large fillet radii on performance crankshafts, ensuring a perfect fit.

Technical Specifications

  • Size Options: STD, .025, .25, .50
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal
  • Min Standard Shaft Size: 1.6529 in / 41.985 mm
  • Max Standard Shaft Size: 1.6535 in / 42 mm
  • Min Standard Tunnel Size: 1.7717 in / 45 mm
  • Max Standard Tunnel Size: 1.7726 in / 45.024 mm
  • Max Wall at Crown: 0.0585 in / 1.487 mm
  • Max Overall Length: 0.6732 in / 17.1 mm

Customer Feedback

One 2020 Ford Mustang GT owner shared, "After installing the ACL Race Bearings, I noticed a significant improvement in engine response, especially during high RPM pulls. They fit perfectly and gave me the confidence to push my limits on the track." Another 2018 Subaru WRX enthusiast mentioned, "These bearings held up great during my last autocross event. No issues with oil pressure, and the engine felt solid throughout the entire run."

Upgrade your engine's internals with the ACL Race Series Engine Bearings 4B1680A-STD and experience the difference that high-performance components can make.

Other Part Numbers:
ACL #acl4B1680A-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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