Manley 33040 BBC 454 Main Bearings P-Series Tri-Metal

The Manley 33040 main bearing set is engineered specifically for Chevrolet Big Block 454 engines, delivering high-performance reliability for demanding applications. These P-Series bearings feature tri-metal construction with a hardened steel backing, copper-lead alloy layer, and electroplated babbitt surface layer designed to reduce friction and increase durability.

Key Features:

• Tri-metal cast copper-lead construction for superior strength and wear resistance
• Hardened steel backing provides exceptional structural integrity
• Extra-thin overlays prevent overlay fatigue under high-load conditions
• High crush factor ensures better seating and retention in the block
• Higher eccentricity design accommodates bore distortion common in performance engines
• Precision-engineered for Chevrolet Big Block 454 engines
• Standard size main bearing set

Manley Performance has been a trusted name in high-performance engine components since 1966, bringing decades of racing experience and engineering expertise to every product. These P-Series main bearings are ideal for street performance, heavy-duty applications, and motorsports use where reliability and durability are critical. Whether you're rebuilding a stock 454 or building a high-performance engine, these bearings provide the quality and performance demanded by serious engine builders.