COMP's Positive Stop PTFE valve seals offer more clearance for dual springs with better sealing than o-ring or umbrella seals. These 503 seals have a .630" outer diameter and fit applications with 11/32" valves and .530" OD valve guides.
For more than 35 years, the COMP Cams(R) mission has never changed: to produce the highest-performing products possible, provide customers with superior service, and to lead the industry in technological development. While the COMP Performance Group(TM) has grown to multiple companies and hundreds of employees, we still retain the competitive spirit and desire to be the very best that has positioned COMP Cams(R) as the absolute leader in valve train components.
For more than 35 years, the COMP Cams(R) mission has never changed: to produce the highest-performing products possible, provide customers with superior service, and to lead the industry in technological development. While the COMP Performance Group(TM) has grown to multiple companies and hundreds of employees, we still retain the competitive spirit and desire to be the very best that has positioned COMP Cams(R) as the absolute leader in valve train components.
- Positive Stop Teflon
- 1 Year Limited Warranty
Application Summary:
| Year | Make/Model |
|---|---|
| Engines | w/ 0.530" OD Valve Guides and 11/32" Valve Stems |