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  See more parts for Mitsubishi Eclipse
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ACL Mitsubishi 1997CC G63B/4G63 0.75mm Oversized Main Bearing Set 83-92 - 5M1144-.75
ACL Mitsubishi 1997CC G63B/4G63 0.75mm Oversized Main Bearing Set 83-92 - 5M1144-.75 - Image 2 ACL Mitsubishi 1997CC G63B/4G63 0.75mm Oversized Main Bearing Set 83-92 - 5M1144-.75 - Image 2

If you’re diving into the world of performance engines, you know that the right bearings can make a world of difference. That’s where these ACL Race Series Engine Bearings come into play. These aren’t just any bearings; they’re crafted with a blend of smart design and solid metallurgy, making them a go-to for those who push their engines to the limit. Whether you’re running a 4, 6, or 8-cylinder setup, these bearings are built to handle the heat—literally.

  • Strength Matters: The overlay plate is thinner yet stronger, which means it can take more abuse without failing. Perfect for those high RPM situations where other bearings might give up.
  • Solid Support: With hardened steel backs on all rod bearings, these bad boys offer better support for the lining and stay put in the housing. No one wants a bearing that shifts under pressure.
  • Better Retention: They’ve cranked up the crush on these bearings for improved retention. You want them to stay in place, especially when the engine's screaming.
  • Heat Transfer: Forget about flash plating on the backs. These bearings are designed to transfer heat more effectively, ensuring they stay cool even when things get hot.
  • RPM Ready: Increased eccentricity helps deal with bore distortion at high RPM, promoting better oil film formation. This is crucial for keeping everything lubricated and running smoothly.
  • Optimized Flow: The 3/4 grooved main bearings maximize load-carrying surface area and oil flow to the conrod bearings, which is key for performance.
  • Consistent Clearances: With tight wall tolerances, you can count on consistent clearances, which is essential for performance builds.
  • Room for Performance: Enlarged ID chamfers on the edges accommodate larger fillet radii on those performance crankshafts, making sure everything fits just right.

Specifications:

  • Size: STD, .025, .25
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal Hardened Steel Backs
  • Min Std Shaft Size: 1.7713 in / 44.991 mm
  • Max Std Shaft Size: 1.7717 in / 45.000 mm
  • Min Std Tunnel Size: 1.8898 in / 48.000 mm
  • Max Std Tunnel Size: 1.8906 in / 48.020 mm
  • Max Wall at Crown: 0.0588 in / 1.494 mm
  • Max Overall Length: 0.925 in / 23.50 mm

Fitment: These bearings are a perfect match for the Mitsubishi Eclipse from 1990 to 2011, specifically for the 5M1144-.75 ACL Mitsubishi 1997CC G63B/4G63 with a 0.75mm oversized main bearing set from '83 to '92. If that's your ride, you’re in for a treat.

Other Part Numbers:
ACL #acl5M1144-.75

Proposition 65

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

Vehicle
1990-2011
 Mitsubishi Eclipse

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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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