ACL Bearings Race Series Performance Rod

ACL Race Series Performance Rod Bearings are tri-metal connecting rod bearings built for high-RPM, high-load racing and performance engines. They are also sold as engine rod bearings or conrod bearings. ACL has more than 50 years of bearing design, metallurgy and manufacturing experience behind the line. The bearings are made to tight tolerances and are meant for engines that need more fatigue strength and durability than standard replacement bearings offer.

Key Features:

• Tri-metal construction: Layered materials combine high strength with good seizure resistance.
• High-strength overlay plate: The reduced overlay thickness improves fatigue properties under heavy load.
• Hardened steel backs: They support the bearing lining and help keep the bearing seated in the housing.
• Increased crush and contact pressure: This improves bearing retention and locks the bearing into the housing.
• No flash plating on the back: This improves heat transfer through the bearing and increases grip between the bearing and its housing.
• Increased eccentricity: This helps the bearing adapt to bore distortion at high engine speeds.
• Oil supply design: Many applications use grooved upper bearings with matching partial grooves in the lowers to limit interruption to the big end oil supply.
• Enlarged ID chamfers: Where required, these clear the large fillet radii found on performance crankshafts.

Race Series bearings are a common choice in race engines across drag racing, circuit racing, drifting and sport compact builds. Select the correct application, crankshaft size and clearance option for your engine build.