Valve Seals - 11/32 x .500 - PC Type w/o Glue

The Valve Seals - 11/32 x .500 - PC Type w/o Glue from HOWARDS RACING COMPONENTS are precision-engineered valve stem seals designed for high-performance racing and engine rebuild applications. These seals prevent oil from entering the combustion chamber while maintaining consistent compression, making them essential for any serious engine builder or racer seeking reliability and peak performance. The positive-stop design ensures proper installation depth, eliminating guesswork and reducing the risk of leakage or damage during assembly.

Manufactured from PTFE (polytetrafluoroethylene), these valve stem seals feature an 11/32-inch valve stem diameter with a 0.500-inch guide outer diameter specification. The PC type (positive-stop configuration) without adhesive allows for straightforward dry installation, making them compatible with both new builds and restoration projects. PTFE material provides superior chemical resistance and durability across a wide temperature range, critical for sustained high-RPM operation. Each set includes 16 seals, providing complete coverage for a full engine's intake or exhaust valve applications, depending on your specific engine platform.

These valve seals benefit engine builders, performance enthusiasts, and professional racing teams who demand OEM-quality components at competitive prices. The positive-stop design is ideal for applications requiring repeatable, precision installation without adhesives, reducing assembly time and improving quality control. Compatible with various small-block and large-block engine platforms, these seals are particularly valued in circle-track racing, drag racing, and street performance builds where valve train integrity directly impacts horsepower delivery and engine longevity. Proper installation requires standard valve seal tools and correct guide bore sizing to ensure optimal sealing performance.