Re: Best valve seals
My machinist switched me from the stock umbrella to a hardened guides, hardened valve stems, and perfect seal configuration. He said durability and oil control were better.
But you need the hardened guides and hardened valve stems if you go with the perfect seals. Otherwise you have premature wear because the perfect seals don't let anything through.
Last edited by mattfranklin; 04-23-2024 at 05:39 PM.
Reason: typos
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