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  See all Engine products
ACL BMW F10 M5 V8 N63/S63 Standard Size High Performance Rod Bearing 8B1578H-STD - 8B1578H-STD

If you're serious about performance, you've probably heard of ACL Race Series Engine Bearings. These aren't just any bearings; they’re designed for those who push their engines to the limit. I’ve had my fair share of experiences with various engine components, and let me tell you, these bearings stand out for a reason.

What really sets them apart is the blend of design and metallurgy that goes into each piece. They’re built to handle the kind of RPMs that would make lesser bearings sweat. Whether you’re working on a 4, 6, or 8-cylinder setup, there’s a good chance these bearings will fit right in.

Now, let’s talk about some of the features that make these bearings a go-to for performance enthusiasts. The high-strength overlay plate is thinner than what you might find in standard options, which actually improves fatigue properties. That means they can take a beating without giving up. Plus, the hardened steel backs on all rod bearings offer solid support for the lining, ensuring they stay put in the housing—no one wants to deal with a dropped bearing during a race.

They've also upped the crush on these bearings, which helps with retention. And they’ve eliminated flash plating on the back, which is a game changer for heat transfer. This means better cooling and grip between the bearings and the housing, crucial when you're pushing the engine hard.

Another neat feature is the increased eccentricity. This is particularly useful at high RPMs, as it compensates for any bore distortion and helps form those all-important hydrodynamic oil films. You want your engine to run smoothly, and these bearings help make that happen.

And if you’re running a performance crankshaft, the enlarged ID chamfers on the edges accommodate large fillet radii, which is a thoughtful touch. The 3/4 grooved main bearings optimize the load-carrying surface area and enhance oil flow to the conrod bearings, which is essential for keeping everything lubricated under pressure.

With tight, consistent wall tolerances, you can maintain reliable clearances, which is key for performance builds. Trust me, when you’re tuning for power, you want every component to work in harmony.

For those working on a BMW F10 M5 with the V8 N63/S63 engine, the 8B1578H-STD standard size high-performance rod bearing is a solid choice. It’s all about getting the best out of your ride, and these bearings help you do just that.

Other Part Numbers:
ACL #acl8B1578H-STD

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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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