King Engine Bearings Chrysler 426Ci/ 440Ci V8 OHV (Size STDX) Main Bearing Set

King Engine Bearings is well-known for making solid engine components, and this main bearing set for Chrysler 426Ci and 440Ci V8 OHV engines is a great example of their work. These bearings are a critical part of your engine's rotating assembly, supporting the crankshaft and ensuring it spins smoothly within the block. If you're rebuilding the bottom end of one of these classic Mopar V8s, getting the right bearings is essential for long-term reliability.

This particular set is sized STDX, which means they are 0.0005 inches undersize on the main journals. This is a common size used when a crankshaft has been ground undersize to clean up minor imperfections or to achieve a specific clearance. The bearings themselves are made with a tri-metal construction, which is a standard for high-performance and heavy-duty applications. This construction offers a good balance of strength and conformability, helping to protect your crankshaft while maintaining proper oil clearance.