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  See all Engine products
ACL Suzuki Hayabusa Motorcycle Standard High Performance Rod Bearing 4B8431HX-STD - 4B8431HX-STD

If you're looking to push your engine to the limit, you really can't go wrong with the ACL Race Series Engine Bearings. These babies are built for serious performance, especially if you're running a setup that hits those higher RPMs. I've had my fair share of experiences with different bearings, and let me tell you, these ones stand out for a reason.

What makes them special? Well, it's all in the details. The overlay plate is high-strength but comes in a reduced thickness. This isn’t just for show; it actually improves fatigue properties, which is crucial when you're revving hard. Plus, the hardened steel backs on the rod bearings provide solid support for the lining, ensuring they stay put in the housing. You want reliability, and these bearings deliver.

Another thing I appreciate is the increased crush. This isn’t just a buzzword; it really helps with bearing retention, so you won't have to worry about them shifting around when the engine gets hot and heavy. They’ve even eliminated flash plating on the back of the bearings, which enhances heat transfer. That means better performance and longer life for your engine. And when you're pushing things, the increased eccentricity helps combat bore distortion, creating a solid hydrodynamic oil film. It’s like giving your engine a little extra love when it needs it most.

Now, let’s talk about the specifics. The 3/4 grooved main bearings are designed to optimize the load-carrying surface area and enhance oil flow to the conrod bearings. It’s all about keeping things lubricated and running smooth, especially under pressure. The tight and consistent wall tolerances mean you can maintain those clearances without any guesswork. Plus, they’ve got enlarged ID chamfers on the edges, which is a nice touch for accommodating those larger fillet radii on performance crankshafts.

In terms of sizing, you’ve got options—STD, .25, and 0.25. So whether you’re working on a 4, 6, or 8-cylinder application, there’s likely a fit for you. I’ve used these bearings in my own builds, and I can honestly say they hold up beautifully under the demands of high-performance driving.

So if you're serious about your ride and want to make sure your engine can take the heat, the ACL Race Series Engine Bearings are definitely worth considering. They’ve got the design, metallurgy, and engineering to back up their performance, and trust me, your engine will thank you for it.

Other Part Numbers:
ACL #acl4B8431HX-STD

Proposition 65

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

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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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