King Engine Bearings Mazda Shy1/Sh-Vpts (Size +0.50mm) Connecting Rod Bearing Set

These King Engine Bearings are built with a tri-metal material that offers a strong performance advantage for your Mazda engine. Specifically, they feature a hardened steel backing for solid support, a copper-lead overlay for improved load capacity, and a tin-aluminum overlay for enhanced conformability and corrosion resistance. This combination is crucial for handling the stresses placed on connecting rod bearings, especially in performance or rebuilt engines. They are sized at +0.50mm, meaning they are intended for use when the crankshaft journals have been machined down by 0.50mm to correct wear or out-of-round conditions.

King designs these bearings with a unique wall thickness that is slightly thinner than stock in the main area, but thicker at the edges. This design helps to prevent oil starvation during high-RPM operation and reduces the risk of bearing damage from crankshaft flex. The SV (Special Vibration) groove pattern is also a notable feature, allowing for a wider oil groove in the main bearing area to improve oil flow and cooling. This attention to detail in their construction helps ensure consistent oil pressure and reduced friction, contributing to a healthier and longer-lasting engine.

When rebuilding or repairing your Mazda engine, using bearings that are precisely sized for your machined crankshaft is essential. These +0.50mm bearings are a well-built option for that specific application, offering improved durability and performance characteristics over standard bearings. Always ensure your crankshaft journals are properly measured and machined to the correct undersize before installing these bearings, and follow the manufacturer's lubrication and installation guidelines carefully.