King Engine Bearings MB5532SI Main Bearing Set for Chevrolet 151/153 Engines

The King Engine Bearings MB5532SI is a precision-engineered main bearing set designed specifically for Chevrolet 151 and 153 cubic inch engines. This complete main bearing set provides the critical interface between the crankshaft and engine block, ensuring smooth rotation and reliable lubrication throughout the engine's operating range.

Key Features:

• Bimetal construction with aluminum-silicon alloy base material for excellent wear resistance
• Precision-manufactured to OEM specifications for proper fit and clearances
• High-strength steel backing provides structural support and heat dissipation
• Advanced bearing surface material resists scuffing and fatigue
• Complete main bearing set for all main journal positions
• Designed for stock rebuilds and performance applications

King Engine Bearings is a leading manufacturer of performance and OE-quality engine bearings, known for their precision manufacturing and quality control. The aluminum-silicon bimetal design offers an excellent balance of durability, embeddability, and conformability, making these bearings ideal for both street and moderate performance applications. Each bearing is manufactured to strict tolerances to ensure proper oil clearance and reliable engine operation.