Main Bearing Spacer Set SBC 400 Main to 350 Main

The KING BEARINGS Main Bearing Spacer Set SBC 400 Main to 350 Main is a crucial component for small-block Chevrolet builders looking to adapt 400 cubic-inch main bearing dimensions to fit 350 specifications. This spacer set simplifies the conversion process, allowing builders to utilize existing 350 bearing inventories or upgrade crankshaft applications without the need for entirely new bearing sets.

Designed to meet OEM tolerances, these precision-engineered spacers ensure proper bearing fit and crankshaft clearance, which is essential for maintaining engine performance. The set compensates for the dimensional differences between 400 and 350 main bearing journals, helping to maintain consistent oil film thickness and preventing premature bearing wear or failure.

Ideal for engine rebuilders and performance shops, this spacer set is particularly beneficial for those assembling stroker motors or restoring classic engines. While it addresses the main journal positions, users should verify compatibility with their specific applications to ensure optimal performance.