11/32 Valve Stem Seals Special Viton Seal .494

The 11/32 Valve Stem Seals Special Viton Seal .494 from COMP CAMS are precision-engineered components specifically designed for small-block and big-block engine builders. These seals are essential for maintaining engine reliability and performance, preventing oil from entering the combustion chamber while ensuring precise tolerances that standard seals may not achieve.

Made from COMP CAMS' proprietary Viton elastomer formula, these valve stem seals offer superior chemical resistance and thermal stability compared to standard nitrile rubber. The .494-inch bore diameter is specifically designed to fit 11/32-inch valve stems, creating a controlled interference fit that accommodates valve stem movement without premature wear.

These valve stem seals are ideal for engine rebuilds and restorations, ensuring long-term engine health and reduced oil consumption. Proper installation is crucial, requiring appropriate valve guide preparation and seal installation tooling to prevent damage during fitment.