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ACL Lancia Delta Integrale 2.0L Trimetal Engine Bearings STD .025 .25, High Performance - 4B2904h
ACL Lancia Delta Integrale 2.0L Trimetal Engine Bearings STD .025 .25, High Performance - 4B2904h - Image 3 ACL Lancia Delta Integrale 2.0L Trimetal Engine Bearings STD .025 .25, High Performance - 4B2904h - Image 2 ACL Lancia Delta Integrale 2.0L Trimetal Engine Bearings STD .025 .25, High Performance - 4B2904h - Image 3

ACL Race Series Engine Bearings - 4B2904H

If you're looking to push your engine's performance to the limit, the ACL Race Series Engine Bearings (part number 4B2904H) are engineered to meet the demands of high RPM conditions. These bearings are designed for a variety of popular 4, 6, and 8-cylinder applications, making them an ideal upgrade for performance-driven vehicles.

Fitment

The 4B2904H bearings are compatible with a range of vehicles, ensuring a precise fit for your engine's specifications. Whether you're tuning a classic muscle car or a modern performance vehicle, these bearings are designed to enhance your engine's reliability and efficiency under stress.

Key Features

  • High-strength overlay plate with reduced thickness improves fatigue resistance, perfect for those high revs.
  • Hardened steel backs on all rod bearings enhance support and retention in the housing, ensuring longevity.
  • Increased crush improves bearing retention, keeping everything snug even under extreme conditions.
  • Elimination of flash plating on the back enhances heat transfer, maximizing grip between the bearings and their housing.
  • Increased eccentricity compensates for bore distortion at high RPM, aiding in the formation of hydrodynamic oil films.
  • 3/4 grooved main bearings optimize load-carrying surface area and oil flow to conrod bearings.
  • Tight wall tolerances help maintain consistent clearances, crucial for performance engines.
  • Enlarged ID chamfers accommodate large fillet radii on performance crankshafts, ensuring a smooth fit.

Technical Specifications

  • Size: STD, .025, .25
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal with hardened steel backs
  • Min Std Shaft Size: 1.9995 in / 50.787 mm
  • Max Std Shaft Size: 2.0003 in / 50.807 mm
  • Min Std Tunnel Size: 2.1219 in / 53.897 mm
  • Max Std Tunnel Size: 2.1226 in / 53.913 mm
  • Max Wall at Crown: 0.0605 in / 1.536 mm
  • Max Overall Length: 0.768 in / 19.50 mm

Customer Feedback

One 2022 Ford F-150 owner noted, "I installed these ACL bearings during my engine rebuild, and the fit was spot on. They’ve held up beautifully even with my supercharger pushing the limits." Another satisfied customer with a 2021 Subaru WRX stated, "After swapping to these bearings, I noticed a smoother operation at high RPMs, which is crucial for my track days."

Upgrade your engine with the ACL Race Series Engine Bearings 4B2904H and experience the difference in performance and reliability. Perfect for those who demand the best from their vehicles.

Other Part Numbers:
ACL #acl4B2904h

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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