Brian Crower Mitsubishi 4G63 Eclipse/Evo 30.5mm Exhaust Valves

Brian Crower is well-known for making solid internal engine components, and these 30.5mm exhaust valves are a great example of their work for the Mitsubishi 4G63 engine. If you're rebuilding the top end of your 1990-1999 Eclipse, 1990-1998 Eagle Talon, 1990-1994 Plymouth Laser, or even the 2003-2006 Lancer, these valves are built to handle the heat and pressure of the exhaust cycle.

These valves feature a 30.5mm head diameter, which is a common size for performance applications on the 4G63. They are made from durable materials designed to withstand the high temperatures found in the exhaust port. When you're putting an engine back together, using well-made valves like these helps ensure proper sealing and efficient exhaust gas flow, which is crucial for performance and engine health.

When installing these valves, make sure to check your valve guide clearances and ensure the valve seats are in good condition. Using new valve seals is also recommended to prevent oil from entering the combustion chamber.