ACL Performance Race Bearings are manufactured with a tri-layer metal with a hardened steel backing in order to withstand high RPM conditions, high stress loads, and high temperatures.  Each ACL race bearing design features the following:

• Large chamfer to accomodate larger crankshaft fillets
• 3/4 groove to provide optimum oil supply to rods and to maximize load carrying capacity
• Incresed crush and tighter wall tolerance for better seating
• Improved overlay and reduced thickness for increased fatigue strength
• Hardened steel backing to maintain crush under high loads and temperatures

* Complete set