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COMP Cams Valve Seal, Metal Body Viton, .530 in. Guide Size, 11/32 in. Valve Stem, Set of 8 | TrackTheory
COMP CAMS · CC-518-8 Comp Cams · CC-518-8 COMP Cams Valve Seal, Metal Body Viton, .530 in. Guide Size, 11/32 in. Valve Stem, Set of 8 Viton seals that hold their shape where nitrile gives up under heat.
▸ Metal body resists distortion during high-heat engine operation▸ Viton compound outperforms nitrile with synthetics and race oils▸ Correct fit for .530 in. guide OD, 11/32 in. stem▸ Stops excess oil reaching the combustion chamber and fouling plugs▸ Sold as a set of eight — enough for a full bank$21
Australian-owned. Stocking circuit racing parts, track-day essentials, and performance upgrades.
COMP Cams Valve Seal, Metal Body Viton… $20.94
Add to cart Dispatched in 1-2 business days · 30-day returns
Home Shop Garage Account incl. GST · ships AU-wide
Add to cart Save to wishlist“The bite is sharp from the first stop. Compounds where they should be when the rotors come up to temperature.”
Specifications
On the spec sheet. Spec sheet coming — contact support for full spec details. Fitment
Will this fit? Fitment data still being indexed for this product. Ask BuildBot for a fit-check against your vehicle.
Why this part
Generic nitrile seals degrade faster under sustained heat and react poorly with full-synthetic lubricants, leading to oil consumption that creeps up quietly until the damage is done. The Viton compound in these COMP Cams seals maintains its sealing integrity at higher temperatures and resists chemical breakdown, making them the sensible choice for any built engine or car that sees regular track use.
Pairs well with
Other parts in this build. © 2026 TrackTheory · ABN 33 689 482 504 Built in Adelaide · Shipping AU-wide