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ACL Race Series Inline 4 High Performance Rod Bearings for Toyota 1RZ, 2RZ, 3RZ - STD Size - 4B8376HX-STD

If you're diving into the world of high-performance engines, you know that every little detail counts. That's where the ACL Race Series Engine Bearings come into play. These aren't just any bearings; they’re crafted to handle the intense demands of higher RPMs without breaking a sweat. Whether you’re running a 4, 6, or 8-cylinder setup, these bearings are designed to keep your engine humming smoothly.

One of the standout features is the high-strength overlay plate. It’s thinner than what you might find on standard bearings, which actually enhances fatigue resistance. This means you can push your engine harder without worrying about wear and tear. Plus, the hardened steel backs on all rod bearings provide solid support for the lining, ensuring they stay put even under the most demanding conditions.

Let’s talk about retention—these bearings have increased crush, which helps them stay firmly in place. And the elimination of flash plating on the back? That’s a game-changer for heat transfer. It means better grip between the bearing and housing, which is crucial when your engine gets hot and heavy.

Another clever design detail is the increased eccentricity. This feature compensates for any bore distortion that tends to happen at high RPMs, helping to form those all-important hydrodynamic oil films. You’ll also appreciate the 3/4 grooved main bearings. They optimize the load-carrying surface area and ensure oil flows smoothly to the conrod bearings, keeping everything lubricated and happy.

When it comes to precision, these bearings don’t skimp. They boast tight, consistent wall tolerances to help you maintain clearances that are spot-on. And if you're working with performance crankshafts, the enlarged ID chamfers on the bearing edges are there to accommodate those larger fillet radii.

In terms of specifications, the ACL Race Series bearings are built to endure the rigors of high RPM conditions. You can find them in sizes like STD, .025, and .25, making it easier to find the right fit for your setup. Take the 4B8376HX-STD for instance; it’s perfect for Toyota 1RZ, 2RZ, and 3RZ inline 4 engines, offering extra oil clearance for that added peace of mind.

So, if you’re serious about performance and want bearings that can keep up with your ambitions, the ACL Race Series is definitely worth a look. They combine solid engineering with real-world performance, and that’s exactly what you need when you’re pushing your engine to the limit.

Other Part Numbers:
ACL #acl4B8376HX-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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