ACL Bearings Race Series High Performance Main Bearing Set

ACL Bearings Race Series High Performance Main Bearing Sets are engine crankshaft main bearings built for racing and high-output street engines. They give the crankshaft a durable bearing surface under high loads, high RPM and demanding operating conditions. They suit engine builders who want a dependable main bearing set, also called a crank main bearing or engine bearing set, for performance builds.

Key Features:

• Tri-metal construction: A steel backing is paired with a strong intermediate bearing layer and a soft running surface. This combination is designed to handle load while protecting the crankshaft journal.
• Race-focused design: Made for the higher loads, speeds and temperatures of competition and modified engines.
• Precision manufacturing: Held to tight tolerances for consistent fit, even crush and reliable oil clearance.
• Brand heritage: ACL Bearings has a long history in motorsport and performance engine building.

Race Series main bearing sets are an upgrade over standard replacement bearings for engine rebuilds and performance builds. Proper measurement of crankshaft journals and oil clearances is recommended during assembly. Choose the child item that matches your engine application and bearing size.