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ACL Subaru 1595-1781cc Standard Connecting Rod Bearing Set 72-89, Trimetal Design - 4B8291-STD

ACL Race Series Engine Bearings - 4B8291-STD

When you're pushing your engine to the limits, you need components that can keep up. The ACL Race Series Engine Bearings (part number 4B8291-STD) are meticulously engineered for high-performance applications, designed specifically for those who demand reliability and durability at higher RPMs. Whether you're tuning a 4-cylinder turbo or a robust V8, these bearings are built to withstand the rigors of racing and spirited driving.

Fitment

The ACL 4B8291-STD bearings are compatible with a variety of popular 4, 6, and 8-cylinder engines. Always verify fitment for your specific year, make, and model to ensure optimal performance.

Key Features

  • High-strength overlay plate with reduced thickness enhances fatigue resistance, making these bearings ideal for high RPM conditions.
  • Hardened steel backs on all rod bearings provide superior support for the bearing lining, ensuring they stay securely in place.
  • Increased crush improves bearing retention, so you can push your engine harder without worrying about failure.
  • Elimination of flash plating on the back enhances heat transfer, maximizing the grip between the bearings and their housings.
  • Increased eccentricity compensates for bore distortion at high RPM, aiding in the formation of hydrodynamic oil films for better lubrication.
  • 3/4 grooved main bearings optimize load-carrying surface area and oil flow to the connecting rod bearings, crucial for performance engines.
  • Tight, consistent wall tolerances help maintain precise clearances for optimal engine performance.
  • Enlarged ID chamfers accommodate large fillet radii on performance crankshafts, ensuring a perfect fit.

Technical Specifications

  • Material: Trimetal construction for enhanced durability
  • Sizes available: STD (.000") and 010 (.010")
  • Resistance: Excellent abrasion, load, impact, and heat resistance

Customer Feedback

“Installed these ACL bearings in my 2020 Subaru WRX during my engine rebuild. The fit was perfect, and I noticed a significant improvement in oil pressure at high RPMs. No more worries about bearing failure on the track!” - Subaru WRX Owner

“I put these in my 2018 Ford Mustang GT, and they’ve held up great even during spirited drives. The engine feels more responsive, and I’m confident in their ability to handle the power.” - Mustang GT Owner

Upgrade your engine with the ACL Race Series Engine Bearings 4B8291-STD and experience the difference that quality engineering can make. Don’t compromise on your build; choose bearings that are built for performance.

Other Part Numbers:
ACL #acl4B8291-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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