Clevite MS-1454A-20 Main Bearing Set

The Clevite MS-1454A-20 main bearing set delivers proven performance and durability for high-performance and racing engine applications. This precision-engineered bearing set features Clevite's legendary TriMetal construction, combining a hardened steel backing with a copper-lead intermediate layer and a protective overlay for superior strength and wear resistance.

Key Features:

• TriMetal construction with hardened steel back for maximum strength
• Optimized bearing grooving for enhanced oil film development and lubrication
• High crush design ensures positive retention in the bearing bore
• Reduced overlay thickness prevents overlay fatigue and hen tracking
• Engineered without flash plating for improved seating characteristics
• Precision-manufactured to strict tolerances for consistent performance

Advanced Bearing Technology:

Clevite main bearings utilize optimized groove designs based on extensive performance testing. The 180-degree groove in the upper main shell provides the ideal balance between oil supply to connecting rod bearings and maintaining a thick oil film for the crankshaft to ride on. The ungrooved lower shell maximizes load-carrying capacity and bearing life by preserving the critical oil film in high-load zones.

Application Notes:

This main bearing set is designed for engines requiring precise clearances and reliable performance under demanding conditions. The bearing design focuses on developing a proper hydrodynamic oil film, allowing the crankshaft to ride on a cushion of oil rather than making metal-to-metal contact. Proper installation with correct clearances is essential for optimal bearing performance and longevity.

Clevite 77 bearings are trusted by professional engine builders and racers worldwide for their consistent quality, precise manufacturing, and proven performance in high-stress applications. Each bearing set is manufactured to exacting standards to ensure proper fit, crush, and oil clearance.