Supertech Honda H23 Black Nitrided Exhaust Valve - +1mm Oversize - Set of 8

This set includes eight Supertech Black Nitrided Exhaust Valves, each measuring 1mm oversize for your Honda H23 engine. These valves are a key component for the top end of your engine, controlling the flow of exhaust gases out of the combustion chamber. When rebuilding or upgrading your engine, using well-made valves like these ensures proper sealing and efficient operation.

The black nitriding process applied to these valves creates a harder surface, which helps improve wear resistance and durability. This treatment also contributes to a smoother surface finish, potentially aiding in better gas flow. Being 1mm oversize, these valves are designed to fill the valve seat more completely, which can be beneficial for engines that have had their valve seats re-machined or for those seeking improved sealing performance. This set is a solid option for anyone working on the cylinder head of their Honda H23 engine.