Main Bearing Set - Ford 4.6L DOHC/SOHC

The Main Bearing Set - Ford 4.6L DOHC/SOHC from King Bearings is engineered for automotive enthusiasts and professional mechanics rebuilding or modifying Ford modular engines. This 0.25 mm undersize bearing kit addresses the critical need for precision bearing surfaces when engine blocks have been bored or machined to accommodate performance upgrades, stroker builds, or block restoration work. Whether you're assembling a high-output platform for street performance or preparing an engine for forced induction, proper main bearing selection is non-negotiable for crankshaft support and longevity.

King Bearings' HP-rated construction delivers superior load distribution and wear resistance across the crankshaft's main journals, critical for controlling crankshaft runout and maintaining proper oil clearances under sustained RPM and boost conditions. The 0.25 mm undersize specification is designed for blocks that have been machined and honed 0.25 mm oversize—a common practice in performance engine rebuilds to restore journal surfaces to optimal geometry and ensure superior bearing crush and conformability. The kit's precision tolerances and advanced bearing material composition provide the durability required for turbocharged, supercharged, or naturally aspirated applications where bearing reliability directly impacts bottom-end integrity.

This bearing set is essential for anyone executing a full engine rebuild on Ford 4.6L DOHC or SOHC platforms, including the popular Mustang, F-150, and Lincoln applications. Mechanics and engine builders working on stroker builds, N/A performance upgrades, or LS swap alternatives will appreciate King's proven reputation for bearing quality and dimensional accuracy. Installation requires proper block machining to 0.25 mm oversize and adherence to OEM torque specifications and oil clearance protocols; verify your block's journal diameter before ordering to ensure correct undersize specification.