GSC P-D Subaru FA20 Viton 6mm Valve Stem Seal Set

If you're rebuilding the top end of your Subaru FA20 engine, replacing the valve stem seals is a critical step. These GSC Power Division seals are made from Viton, a material known for its excellent resistance to heat and oil, which is exactly what you need in this high-stress area. Keeping these seals in good shape prevents oil from leaking down the valve guides into the combustion chamber, which can cause blue smoke on startup and increased oil consumption.

This set includes eight 6mm valve stem seals, designed to fit your FA20 engine precisely. Viton is a popular choice for performance and high-temperature applications because it holds up much better than standard rubber seals under demanding conditions. Proper installation ensures a good seal, helping to maintain compression and keep your engine running cleanly.