Supertech Nissan CA18 DET Exhaust valve 28.15x5.97x88.30mm / Inconel / +1mm - Single (D/S Only)

This Supertech exhaust valve is made from Inconel, a high-nickel alloy known for its exceptional strength and resistance to extreme heat. Specifically designed for the Nissan CA18DET engine, this valve measures 28.15mm in intake diameter, 5.97mm stem diameter, and 88.30mm overall length. The Inconel material is crucial for exhaust valves because it can withstand the intense temperatures and pressures found in the exhaust port, helping to prevent valve seat recession and maintain sealing integrity under demanding conditions.

This particular valve is a +1mm oversize version, meaning its head diameter is 1mm larger than the stock valve. This slight increase in size can help improve airflow into the combustion chamber, potentially leading to better performance. It's designed as a single unit for the driver's side (D/S Only) of the engine. When rebuilding or upgrading the top end of your CA18DET, using valves made from materials like Inconel ensures reliability and longevity, especially if you plan on pushing the engine harder than stock.