Main Bearing Set - Ford BDA

The Main Bearing Set - Ford BDA by King Bearings is a precision engine component engineered for Ford 4-cylinder applications demanding reliable crankshaft support and oil delivery. Built for enthusiasts and professional mechanics rebuilding or upgrading high-performance Ford engines, this XP-series bearing kit delivers the durability and precision fit required for both street and competition use. Whether you're completing a full bottom-end rebuild or upgrading existing internals, proper bearing selection is critical to engine longevity and peak performance.

King Bearings' XP-series main bearing set uses tri-metal construction with a steel backing, copper-lead intermediate layer, and aluminum-tin overlay—a proven design that distributes loads evenly across the crankshaft journals while maintaining optimal oil film strength under sustained RPM and boost conditions. The standard sizing accommodates stock journal diameters, ensuring drop-in compatibility without costly machine work. Superior crush strength and controlled clearances minimize edge wear and maintain consistent oil pressure across all bearing positions, critical for engines running higher-than-stock boost or extended high-RPM operation.

This bearing set is ideal for Ford 4-cylinder engine builders—from naturally aspirated street engines to turbocharged or supercharged applications—and professional rebuilders who require OEM-compatible fitment with measurably superior load capacity. Installation requires standard main bearing clearance verification (typically 0.0015–0.003 inch) and proper torque specifications per Ford service data. King Bearings' reputation in both domestic and import racing ensures these bearings withstand the rigors of competition while providing street-driven reliability.