Supertech Honda B18A/B18B Black Nitrided Exhaust Valve - +0.5mm Oversize - Set of 8

This set includes eight Supertech black nitrided exhaust valves, each measuring 0.5mm oversize. These valves are specifically made for Honda B18A and B18B engines, which are common in many popular Honda models from the late 80s through the early 2000s.

The black nitriding process applied to these valves hardens the surface, making them more resistant to wear and heat. This can help extend the life of your engine's valve train, especially in applications where the engine is pushed a bit harder. The +0.5mm oversize dimension means these valves are slightly larger than stock, which is typically done when rebuilding an engine to ensure a fresh seal in the valve seat or to slightly improve flow if the valve seat area has been opened up.

When rebuilding the top end of your B18A or B18B engine, using valves that are properly sized and treated for durability is important for reliable performance. Make sure to check your specific engine's requirements and the condition of your valve seats before ordering oversize valves.