King Engine Bearings MB554AM050 Main Bearing Set Chevrolet - 265 283 302 327

The King Engine Bearings MB554AM050 is a complete crankshaft main bearing set engineered for Chevrolet small-block engines, including the 265, 283, 302, and 327 cubic inch displacements. Offered in a 0.050" (50mm) oversize, this set is designed for use during engine rebuilds where the crankshaft journals have been machined beyond standard dimensions.

Key Features:

• Bi-Metal Aluminum Construction: Manufactured from a standard aluminum-based bi-metal material equivalent to SAE-783, providing reliable performance in low to medium load engine applications
• 0.050" Oversize: Precision-sized for use with crankshafts that have been reground to the 0.050" undersize specification
• Full Main Bearing Set: Includes all main bearings required for a complete engine rebuild on compatible Chevrolet small-block applications
• Precision Tolerances: King's manufacturing process ensures tight dimensional tolerances for proper oil film thickness and bearing clearance
• OEM-Quality Replacement: Designed to meet or exceed original equipment specifications for long-term durability and engine protection

King Engine Bearings is a globally recognized manufacturer of precision engine bearings, trusted by professional engine builders and OEM suppliers worldwide. The MB554AM050 is an ideal choice for engine rebuilders restoring Chevrolet classic and performance small-block engines to factory specifications.