Supertech VW 1.8L/2.0L 8V / 16V Sodium Filled Inconel Exhaust Valve - +0.5mm Oversize - Set of 8

Supertech is well-known for making strong internal engine components, and this set of eight sodium-filled Inconel exhaust valves for VW 1.8L and 2.0L 8-valve and 16-valve engines continues that tradition. These valves are designed to handle the extreme heat and stress found in performance applications, especially when you're pushing your engine hard.

The key to these valves is their construction. They are made from Inconel, a superalloy that's incredibly resistant to high temperatures and corrosion, which is crucial for exhaust valves that see the hottest gases in your engine. To further help with heat dissipation, they are sodium-filled. A small amount of sodium metal is sealed inside the valve stem; as the engine runs, the sodium melts and circulates, carrying heat away from the valve face and into the cylinder head much more effectively than a solid stem could. This helps prevent valve seat recession and keeps the valve operating within its intended temperature range, even under demanding conditions. These are a +0.5mm oversize set, meaning they are slightly larger than stock to help improve sealing and potentially airflow when used with matching components in a rebuilt or performance cylinder head.

This set includes all eight exhaust valves needed for a complete engine build. When rebuilding or upgrading your VW's cylinder head, using high-quality valves like these from Supertech is a smart choice for reliability and performance. Be sure to check manufacturer specifications for proper installation and any associated components needed for your specific engine build.