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  See more parts for Ford Probe
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ACL Mazda 1991CC FS 0.50mm Oversized Rod Bearing Set for Ford Probe, Mazda MX-6, Protege - 4B8300-.50

If you're serious about performance, these ACL Race Series Engine Bearings are a game changer. They’re not just any bearings; they’re engineered to handle the kind of RPMs that make most stock bearings sweat. Whether you’re pushing a 4, 6, or 8-cylinder engine, these babies are designed to keep up with your demands.

What Makes These Bearings Stand Out?

  • High Strength Overlay: The overlay plate is thinner but tougher, which means it’s got better fatigue resistance. You won’t have to worry about them giving out when things get heated.
  • Hardened Steel Backs: All rod bearings come with hardened steel backs. This isn’t just for show; it helps support the bearing lining and keeps everything snug in the housing.
  • Improved Bearing Retention: With increased crush, these bearings stay put where they belong, even under intense conditions.
  • Heat Transfer: Forget about flash plating on the backs. This design helps heat dissipate better, which means you get better grip between the bearings and the housing.
  • High RPM Performance: The increased eccentricity is a neat touch, helping to compensate for bore distortion when you’re revving high and ensuring those hydrodynamic oil films form just right.
  • Optimized Oil Flow: The 3/4 grooved main bearings maximize the load-carrying surface area and ensure oil flows smoothly to the conrod bearings. Less friction means better performance.
  • Consistent Wall Tolerances: You want tight, consistent wall tolerances, and these deliver just that, helping you maintain those all-important clearances.
  • Large Fillet Radius Compatibility: The enlarged ID chamfers on the edges are perfect for those performance crankshafts with larger fillet radii. They fit like a glove.

Specifications You Can Count On

  • Crafted with innovative manufacturing techniques that you can trust.
  • Designed with safety and reliability at the forefront—because engine failure is not an option.
  • Precision engineering means you’re getting top-notch quality every time.

Compatible With:

These bearings fit a few specific models, so make sure you check:

  • Ford Probe (1989-1997)
  • Mazda MX-6 (1988-1992)
  • Mazda Protege (1990-2003) - 4B8300-.50 ACL Mazda 1991CC FS 0.50mm Oversized Rod Bearing Set (93-02)

In short, if you’re looking to push your engine to its limits without worrying about the bearings giving out, these ACL Race Series Engine Bearings are worth considering. They’re built for the real world, where performance matters.

Other Part Numbers:
ACL #acl4B8300-.50

Proposition 65

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

Vehicle
1989-1997
 Ford Probe
1988-1992
 Mazda MX-6
1990-2003
 Mazda Protege

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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