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  See more parts for Ford Explorer
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ACL Standard Size Main Bearing Set 5M590H-STD for Ford 221/255/260/289/302 Windsor - 5M590H-STD
ACL Standard Size Main Bearing Set 5M590H-STD for Ford 221/255/260/289/302 Windsor - 5M590H-STD - Image 2 ACL Standard Size Main Bearing Set 5M590H-STD for Ford 221/255/260/289/302 Windsor - 5M590H-STD - Image 2

ACL 5M590H-STD Main Bearing Set

The ACL 5M590H-STD Main Bearing Set is engineered for those who demand reliability and performance from their Ford engines. This set is designed specifically for the Ford 221, 255, 260, 289, and 302 Windsor engines, providing a solid foundation for your high-performance build. Customers appreciate the meticulous attention to detail that ACL has put into these bearings, often noting how they enhance engine longevity and performance.

Features:

  • High strength overlay plate with reduced thickness, enhancing fatigue resistance.
  • Hardened steel backs on all rod bearings, ensuring better support and retention.
  • Increased crush for improved bearing retention, giving you peace of mind during high RPM situations.
  • Elimination of flash plating on the back of the bearings, which improves heat transfer and grip in the housing.
  • Increased eccentricity to counteract bore distortion at high RPM, aiding in hydrodynamic oil film formation.
  • 3/4 grooved design optimizes load carrying surface area and oil flow to conrod bearings.
  • Tight, consistent wall tolerances help maintain clearances accurately.
  • Enlarged ID chamfers accommodate large fillet radii on performance crankshafts.

Specifications:

  • Size: STD
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal Hardened Steel Backs
  • Min Std Shaft Size: 2.2482 in / 57.104 mm
  • Max Std Shaft Size: 2.249 in / 57.125 mm
  • Min Std Tunnel Size: 2.4412 in / 62.006 mm
  • Max Std Tunnel Size: 2.442 in / 62.027 mm
  • Max Wall at Crown: 0.0957 in / 2.431 mm
  • Max Overall Length: 0.885 in / 22.48 mm

Customer Feedback:

Many users have shared their satisfaction with the 5M590H-STD bearings, highlighting how they provide a noticeable improvement in engine performance. One customer mentioned, "After installing these bearings, my engine runs smoother, and I can feel the difference during acceleration." Another noted, "They fit perfectly into my build, and I have no worries about durability at high RPMs."

Fitment:

These bearings are compatible with the following Ford models:

  • Ford Explorer (1995-2016)
  • Ford F-150 (1975-2022)
  • Ford Mustang (1964-1973 & 1979-2022)
  • Ford Mustang GT (2015-2022)
  • Ford Mustang II (1974-1978)

Other Part Numbers:
ACL #acl5M590H-STD

Proposition 65

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

Vehicle
1995-2016
 Ford Explorer
1975-2022
 Ford F-150
1964-1973, 1979-2022
 Ford Mustang
2015-2022
 Ford Mustang GT
1974-1978
 Ford Mustang II

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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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