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ACL 4B1490H-STD High Performance Rod Bearing Set
The ACL 4B1490H-STD is a standout choice for those looking to enhance their engine's performance. With a focus on durability and efficiency, these rod bearings are crafted using a unique blend of design and metallurgy. They are specifically designed to handle the demands of high RPM conditions, making them suitable for a range of performance applications.
Features
- High strength overlay plate with reduced thickness for improved fatigue properties.
- Hardened steel backs on all rod bearings enhance support and retention in the housing.
- Increased crush for better bearing retention.
- Elimination of flash plating on the back improves heat transfer and grip.
- Increased eccentricity to counteract bore distortion at high RPMs.
- 3/4 grooved main bearings optimize load carrying surface area and oil flow.
- Tight wall tolerances help maintain consistent clearances.
- Enlarged ID chamfers accommodate large fillet radius on performance crankshafts.
Specifications
- Size: STD
- Oil Clearance: Standard
- Half Type: Identical Halves
- Material: Tri-metal with hardened steel backs
- Min Standard Shaft Size: 1.7707 in (44.975 mm)
- Max Standard Shaft Size: 1.7713 in (44.991 mm)
- Min Standard Tunnel Size: 1.8898 in (48.000 mm)
- Max Standard Tunnel Size: 1.8904 in (48.016 mm)
- Max Wall at Crown: 0.0588 in (1.493 mm)
- Max Overall Length: 0.709 in (18.00 mm)
Customer Feedback
"I installed the ACL 4B1490H-STD bearings in my BMW and noticed a significant improvement in engine response. The fit was perfect, and they seem to hold up well under stress." - James R.
"These bearings are great for my performance build. They fit nicely and have been reliable so far. Definitely worth the investment." - Linda K.
Other Part Numbers:
ACL #acl4B1490H-STD
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
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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