Supertech Mitsubishi 4G63/4G63T Black Nitrided Exhaust Valve - +0.5mm Oversize - Set of 8

If you're rebuilding the top end of your Mitsubishi 4G63 or 4G63T engine, new exhaust valves are a critical part of the process. These Supertech valves are designed to handle the heat and stress of combustion, ensuring your engine breathes efficiently. They are a +0.5mm oversize set, which is useful when the valve seats have been reconditioned or replaced and require a slightly larger valve to achieve proper sealing and fitment.

The black nitriding treatment on these valves is a surface hardening process that improves wear resistance and durability. This means they can better withstand the constant opening and closing cycles and the high temperatures they encounter. Because they are a set of eight, you get all the exhaust valves needed for a complete engine rebuild, making it a convenient choice for your project.