ACL Bearings 5M829H-10 Race Series Main Bearing Set Oversize Big Block Chevy - 010

The ACL Bearings 5M829H-10 is a high-performance Race Series main bearing set engineered for Big Block Chevrolet engines including 396, 402, 427, and 454 cubic inch displacements. This premium bearing set features .010" oversize dimensions for proper clearance on reground or oversized crankshafts, making it ideal for engine rebuilds and high-performance applications.

Race Series Construction:

• Multi-layered tri-metal copper alloy construction combining high strength with excellent seizure resistance
• High-strength overlay plate with reduced thickness for superior fatigue properties
• Hardened steel backing for improved bearing lining support and retention
• 3/4 groove design to optimize bearing load carrying surface area and enhance oil flow to connecting rod bearings
• Increased crush for improved bearing retention in the housing

Performance Enhancements:

• Increased eccentricity to compensate for bore distortion at high RPM and assist hydrodynamic oil film formation
• Extended oil grooves for better oil supply and reduced pressure pulsing
• Elimination of flash plating on bearing backs for improved heat transfer and maximum housing grip
• Enlarged ID chamfers to accommodate large fillet radius on performance crankshafts
• Manufactured to exact tolerances for consistent bearing clearances

ACL Race Series bearings are designed to withstand extreme endurance under harsh racing conditions including high RPM operation and demanding performance applications. Set includes 5 main bearings. Made in Australia by ACL, a trusted OEM and aftermarket supplier with over 70 years of bearing manufacturing expertise.