Brian Crower Nissan KA24DE 31.80mm Exhaust Valves

These Brian Crower exhaust valves measure 31.80mm, a specific size chosen to work well within the KA24DE engine. When you're rebuilding the top end of your Nissan Altima or 240SX, especially if you're looking to get more out of the engine, valves are a critical component to consider. They control the flow of exhaust gases out of the combustion chamber, and their ability to seal properly and withstand heat directly impacts engine performance and longevity.

Brian Crower is known for making well-built internal engine components, and these exhaust valves are no exception. They are designed to be a direct replacement for your stock valves, meaning they fit right into the factory valve seats and work with your existing valvetrain. This makes them a solid option if you're doing a standard rebuild or a mild performance upgrade. Ensuring proper sealing and heat management is key, and these valves are made to handle the demands of the exhaust side of your engine.

If you're working on a KA24DE engine, whether it's for a 1993-2001 Altima or a 1991-1998 240SX, these valves are a good choice to consider. Make sure to check your specific engine's requirements and consult your service manual for proper installation procedures and any other components you might need for your rebuild.