Supertech Nissan SR20DE Manganese Bronze Exhaust Valve Guide 6mm Stem - Set of 8

If you're rebuilding the top end of your Nissan SR20DE engine, getting the valve guides right is crucial for proper valve sealing and oil control. These exhaust valve guides from Supertech are made from manganese bronze, a material known for its good wear resistance and ability to handle the heat from exhaust valves.

Each guide is designed for a 6mm stem and this set includes eight pieces, which is what you'll need for a complete SR20DE engine. Manganese bronze is a solid choice for exhaust applications because it can withstand higher temperatures compared to some other materials, helping to ensure consistent performance and longevity in your cylinder head.