Main Bearing Set Mopar 5.7L/6.1L Gen III Hemi

The Main Bearing Set for Mopar 5.7L/6.1L Gen III Hemi is an essential engine rebuild component engineered for builders and mechanics pushing their Dodge and Chrysler muscle cars to higher performance levels. Whether you're refreshing a tired engine or assembling a high-output stroker build, this bearing set provides the critical journal and thrust surfaces that support crankshaft rotation under extreme loads. Built by King Bearings—a trusted OEM and aftermarket supplier—this set delivers the precision fit and durability required for Gen III Hemi platforms that demand reliability at elevated RPM and boost levels.

King Bearings' main bearing set utilizes advanced tri-metal construction with a proprietary lead-tin overlay that maximizes oil film strength and accommodates both stock and modified clearances. The bearing material is selected to handle the thermal cycling and pressure spikes common in turbocharged, supercharged, and naturally aspirated Hemi applications, while the precise crush fit ensures consistent clamping load across all journal positions. The set maintains factory dimensional specifications, allowing seamless integration into your block without requiring line-honing or additional machine work on properly prepared surfaces.

This bearing set is ideal for anyone rebuilding 5.7L or 6.1L Gen III Hemi engines—from street enthusiasts restoring original power to serious competitors running forced induction and high-octane fuel. Installation requires standard engine rebuild practices: thorough block cleaning, proper crank polishing, accurate torque sequences, and correct oil clearance verification before assembly. Verify your block's journal diameter and select the corresponding bearing set size; King Bearings offers multiple clearance options to match your specific machine work and performance goals.