Supertech Mitsubishi 4G63/4G63T Inconel Exhaust Valve - +1mm Oversize - Set of 8

Supertech is well-known for making robust engine components, and this set of eight +1mm oversize Inconel exhaust valves for the Mitsubishi 4G63 and 4G63T engines is a prime example. If you're rebuilding the top end of one of these popular engines, especially for performance applications, these valves are built to handle the heat and stress.

These valves are crafted from Inconel, a high-nickel alloy that's exceptionally resistant to high temperatures and corrosion. This makes them ideal for exhaust applications where temperatures can soar, helping to prevent valve seat recession and maintain sealing integrity over time. The +1mm oversize design means they are slightly larger than stock, which can help improve flow and performance when paired with other engine modifications. Each valve is precisely made to ensure it fits right and performs as expected.

This set includes all eight exhaust valves needed for a complete engine build. When working on a 4G63 or 4G63T, using high-quality components like these Inconel valves is key to achieving reliable performance and longevity.