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  See more parts for Chevrolet Avalanche
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ACL Chevrolet V8 396/402/427/454 Race Series 20 Oversize Main Bearing Set 5M829H-20 - 5M829H-20
ACL Chevrolet V8 396/402/427/454 Race Series 20 Oversize Main Bearing Set 5M829H-20 - 5M829H-20 - Image 2 ACL Chevrolet V8 396/402/427/454 Race Series 20 Oversize Main Bearing Set 5M829H-20 - 5M829H-20 - Image 2

ACL 5M829H-20 Race Series Main Bearing Set

The ACL 5M829H-20 main bearing set is engineered for high-performance applications, particularly suited for Chevrolet V8 engines, including the 396, 402, 427, and 454 cubic inch variants. With a focus on durability and efficiency, these tri-metal bearings are designed to withstand the rigors of high RPM conditions, making them a reliable choice for serious automotive applications.

Key Features

  • High Strength Overlay: The overlay plate features a reduced thickness that enhances fatigue resistance, ensuring longevity under demanding conditions.
  • Hardened Steel Backs: All rod bearings come with hardened steel backs, providing superior support for the bearing lining and enhancing retention within the housing.
  • Improved Bearing Retention: Increased crush factor ensures better retention of the bearings, minimizing the risk of displacement during operation.
  • Enhanced Heat Transfer: The elimination of flash plating on the back of the bearings optimizes heat dissipation and maximizes grip between the bearing and housing.
  • Compensated Eccentricity: Designed with increased eccentricity to counteract bore distortion at high RPM, facilitating the formation of hydrodynamic oil films for improved lubrication.
  • Optimized Oil Flow: The 3/4 grooved main bearings enhance load-carrying surface area and oil flow to the connecting rod bearings, promoting efficient engine operation.
  • Consistent Tolerances: Tight wall tolerances help maintain consistent clearances, essential for performance applications.
  • Accommodating Design: Enlarged ID chamfers on bearing edges are tailored to fit large fillet radii on performance crankshafts.

Specifications

  • Size Options: STD, 001, 009, 010, 011, 020
  • Oil Clearance: Standard
  • Half Type: Upper & Lower
  • Material: Tri-metal with hardened steel backs
  • Min Standard Shaft Size: 2.7482 in / 69.804 mm
  • Max Standard Shaft Size: 2.7492 in / 69.83 mm
  • Min Standard Tunnel Size: 2.937 in / 74.6 mm
  • Max Standard Tunnel Size: 2.938 in / 74.625 mm
  • Max Wall at Crown: 0.0934 in / 2.372 mm
  • Max Overall Length: 1.0433 in / 26.5 mm

Fitment

The ACL 5M829H-20 main bearing set is compatible with the following Chevrolet models:

  • Chevrolet Avalanche (2007-2013)
  • Chevrolet Avalanche 1500 (2002-2006)
  • Chevrolet Avalanche 2500 (2002-2006)
  • Chevrolet Bel Air (1950-1975 & 1981)
  • Chevrolet Chevelle (1964-1974)
  • Chevrolet El Camino (1975-1987)
  • Chevrolet Express (1996-2020)

Other Part Numbers:
ACL #acl5M829H-20

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2007-2013
 Chevrolet Avalanche
2002-2006
 Chevrolet Avalanche 1500
2002-2006
 Chevrolet Avalanche 2500
1950-1975, 1981
 Chevrolet Bel Air
1964-1974
 Chevrolet Chevelle
1975-1987
 Chevrolet El Camino
1996-2020
 Chevrolet Express

ACL Banner

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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