
COMP Cams · New
COMP Cams Valve Seal Viton GM LS1 .313
MPN 511-1 · Store SKU cca511-1
Supplier stock checked 11/8/2026, 4:37:40 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 511 seal has a .600" OD and fits LS applications with 8mm valves and .500" OD guides. 1 Steel Viton Valve Seal for .500" Guide Size, 8mm Valve Stem Viton Valve Seal GM LS1 .313 X .500
Manufacturer fitment & guides
- Engines w/ 0.500" OD Valve Guides and 8 mm Valve Stems
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- California Proposition 65: Y