Supertech Honda B18A/B20 28x6.55x105.80mm Blk Nitrided Exhaust Valve - Set of 8

If you're rebuilding the top end of your Honda B18A or B20 engine, these Supertech exhaust valves are a solid option. This set includes eight valves, each measuring 28mm in diameter with a 6.55mm stem and a total length of 105.80mm. They're treated with a black nitriding process, which hardens the surface and improves wear resistance, helping them stand up to the heat and stress of combustion.

The nitriding process not only makes these valves more durable but also helps reduce friction between the valve and its guide. This can lead to improved sealing and potentially better performance over time. Supertech is known for making well-built engine components, and these valves are designed to be a direct replacement for your stock units, making installation straightforward if you're already inside the engine.