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If you’re looking to push your engine to its limits, you’ll want a solid set of bearings that can handle the heat. The ACL Race Series Engine Bearings are engineered for those who demand more from their vehicles. These aren’t your run-of-the-mill bearings; they’re designed to thrive in high RPM situations, making them a great choice for both street and track applications.
What sets these bearings apart?
- First off, the high-strength overlay plate is thinner but tougher, which means it can take a beating without giving up. This is crucial for fatigue resistance, especially when you’re pushing your engine hard.
- All rod bearings feature hardened steel backs. This isn’t just for show—it helps support the bearing lining and keeps everything snug in the housing.
- With increased crush, these bearings stay put where they belong, even under stress.
- No flash plating on the back means better heat transfer. This is a big deal when you’re trying to keep your engine cool and efficient.
- They’ve also got increased eccentricity, which helps counteract bore distortion at high RPM. This is key for forming those hydrodynamic oil films that keep everything running smoothly.
- The 3/4 grooved main bearings optimize oil flow to the conrod bearings, ensuring that everything stays lubricated and ready to perform.
- Plus, the tight wall tolerances help maintain consistent clearances, which is vital for performance builds.
- And let’s not forget the enlarged ID chamfers on the edges, which accommodate larger fillet radii on performance crankshafts.
Specifications:
- Size options: STD, .025, .25, .50
- Oil Clearance: Standard
- Half Type: Upper & Lower
- Material: A blend of Aluminum, Tin, and Silicon for durability
- Min Std Shaft Size: 1.9661 in / 49.938 mm
- Max Std Shaft Size: 1.9668 in / 49.956 mm
- Min Std Tunnel Size: 2.1259 in / 53.998 mm
- Max Std Tunnel Size: 2.1267 in / 54.018 mm
- Max Wall at Crown: 0.0793 in / 2.013 mm
- Max Overall Length: 0.6941 in / 17.63 mm
Fitment: These bearings fit the Mazda 323 from 1986 to 2003, specifically the 5M8353-.25 ACL Mazda 4 for 1498-1597-1840cc B5/B6/BP engines with a .25mm oversized main bearing set from '81 to '98. Make sure you check your specs before diving in!
In short, if you’re serious about performance and want components that can keep up with your ambitions, these bearings are worth considering. They’re built for the long haul, so you can focus on what really matters—driving.
Other Part Numbers:
ACL #acl5M8353-.25
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1986-2003 Mazda 323 |
323 | 1986-2003 |
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 RacingEngine 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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