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ACL 4B1912HD-STD Race Series Engine Bearings

When it comes to pushing your engine to its limits, you need components that can keep up with the demand. The ACL 4B1912HD-STD Race Series Engine Bearings are engineered specifically for high-performance applications, making them a must-have for serious automotive enthusiasts. These bearings are designed to perform under high RPM conditions, ensuring that your engine runs smoothly and efficiently, whether you're on the track or hitting the streets.

Fitment

The ACL 4B1912HD-STD bearings are compatible with a variety of popular 4, 6, and 8-cylinder engines. Make sure to check your vehicle's specifications to ensure a perfect fit. These bearings are particularly favored by owners of models that demand robust performance and reliability.

Key Features

  • High-strength overlay plate with reduced thickness enhances fatigue properties, ensuring longevity even under extreme conditions.
  • Hardened steel backs on all rod bearings provide superior support for the bearing lining and improve retention within the housing.
  • Increased crush for better bearing retention, keeping everything locked in place during high-performance driving.
  • Elimination of flash plating on the back of the bearings facilitates improved heat transfer, maximizing the grip between the bearings and their housing.
  • Increased eccentricity helps compensate for bore distortion at high RPM, promoting the formation of hydrodynamic oil films.
  • 3/4 grooved main bearings optimize the load-carrying surface area and enhance oil flow to the conrod bearings.
  • Tight, consistent wall tolerances help maintain precise clearances, critical for engine performance.
  • Enlarged ID chamfers accommodate large fillet radii on performance crankshafts, making installation smoother.

Technical Specifications

  • Size: STD, 0.25
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal Hardened Steel Backs
  • Min Std Shaft Size: 1.889 in / 47.98 mm
  • Max Std Shaft Size: 1.8898 in / 48 mm
  • Min Std Tunnel Size: 2.008 in / 51.004 mm
  • Max Std Tunnel Size: 2.0088 in / 51.024 mm
  • Max Wall at Crown: 0.0589 in / 1.496 mm
  • Max Overall Length: 0.7638 in / 19.4 mm

Customer Feedback

One satisfied customer shared their experience after installing the ACL 4B1912HD-STD bearings in their 2020 Subaru WRX. They noted, "These bearings have made a noticeable difference in my engine's response. The fit was perfect, and I can feel the improved oil flow during spirited driving." Another user with a 2018 Ford Mustang GT commented, "I pushed my engine to higher RPMs, and these bearings held up flawlessly, providing the reliability I need for track days."

Upgrade your engine's reliability and performance with the ACL 4B1912HD-STD Race Series Engine Bearings. Designed for those who demand the best, these bearings are a crucial addition to your performance build.

Other Part Numbers:
ACL #acl4B1912HD-STD

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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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