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ACL Race Series Engine Bearings - 4B8306A-.75

When it comes to high-performance engine components, the ACL Race Series Engine Bearings (Part Number: 4B8306A-.75) are engineered to meet the demands of serious automotive enthusiasts. Designed for applications that require robust performance under high RPM conditions, these Trimetal engine bearings deliver the reliability and durability that your engine craves.

Fitment

These bearings are compatible with a range of popular 4, 6, and 8 cylinder engines, making them a versatile choice for many performance builds. Whether you're upgrading your 2020 Subaru WRX or enhancing your 2018 Ford Mustang GT, these bearings ensure optimal fitment and function.

Key Features

  • High strength overlay plate with reduced thickness for enhanced fatigue resistance, perfect for those high-revving applications.
  • Hardened steel backs on all rod bearings provide superior support for the bearing lining and improve retention within the housing.
  • Increased crush enhances bearing retention, ensuring they stay in place even under the most demanding conditions.
  • Elimination of flash plating on the back improves heat transfer, maximizing grip between the bearing and its housing.
  • 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 conrod bearings.
  • Tight, consistent wall tolerances help maintain precise clearances, a must for performance applications.
  • Enlarged ID chamfers on bearing edges accommodate large fillet radius on performance crankshafts, ensuring a smooth fit.

Specifications

  • Manufactured with NDC technology for excellent abrasion, load, impact, and heat resistance.
  • Available sizes: STD (.000") and 010 (.010").

Customer Feedback

One 2020 Ford Mustang GT owner noted, "I installed the ACL Race Series bearings during my engine rebuild, and the difference is noticeable. They fit perfectly and handle the power from my supercharger without any issues." Another user with a 2019 Subaru WRX mentioned, "These bearings have improved my oil pressure at high RPMs, and I feel confident pushing my limits on the track!"

Upgrade your engine with the ACL Race Series Engine Bearings and experience the performance gains that come from a proven design. Whether you're on the street or the track, these bearings are built to perform.

Other Part Numbers:
ACL #acl4B8306A-.75

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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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