ACL Bearings 5M829HNC-01 Race Series Main Bearing Set Big Block Chevy CT-1 Coated

The ACL Bearings 5M829HNC-01 is a premium Race Series main bearing set engineered for Big Block Chevrolet V8 engines (396/402/427/454 ci). This high-performance bearing set features ACL's advanced H-Series metallurgy combined with Calico's CT-1 dry film lubricant coating and a narrowed design for maximum crankshaft clearance with large fillet radii. Sized at .001 inch extra clearance, this set is ideal for high-RPM racing applications where precise bearing clearances are critical.

Key Features:

• CT-1 dry film lubricant coating reduces friction and provides intermittent dry lubrication during oil starvation conditions
• Multi-layered tri-metal copper alloy construction delivers exceptional strength and seizure resistance
• Narrowed bearing design provides additional edge clearance for crankshafts with exceptionally large fillet radii
• Increased eccentricity compensates for bore distortion at high RPM and assists hydrodynamic oil film formation
• Enhanced crush characteristics improve bearing retention in the housing
• Enlarged ID chamfers and elimination of flash plating on bearing backs improve heat transfer
• Half-groove design optimizes bearing load carrying surface area
• Manufactured to exact tolerances for consistent clearances and reliable performance

ACL Race Series bearings are the choice of professional engine builders worldwide, combining decades of manufacturing experience with cutting-edge metallurgy and engineering. The CT-1 coating is specifically engineered to withstand the extreme conditions of high-performance engines, offering corrosion protection, chemical resistance, and reduced parasitic drag. Set includes 5 main bearings. Made in Australia.