Main Bearing Set - BBC GEN 4 5 6 - 1/2 Groove

The Main Bearing Set – BBC GEN 4 5 6 – 1/2 Groove by KING BEARINGS is essential for any big-block Chevy engine rebuild or high-performance modification. This set is particularly suited for enthusiasts restoring classic muscle cars, upgrading street rods, or building competition engines where reliability and performance are critical.

Engineered specifically for BBC Gen 4, Gen 5, and Gen 6 platforms, these main bearings feature a 1/2 groove design that optimizes oil flow to the crankshaft journals while maintaining structural integrity under extreme loads. The copper-lead alloy construction ensures durability and minimizes wear, making them ideal for high-performance applications.

This main bearing set is particularly beneficial for those running higher boost levels, nitrous, or extended RPM pulls, as it helps maintain consistent oil clearances and prevents bearing spin. While it serves as a reliable option for performance builds, customers should verify compatibility with their specific engine requirements.