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04-23-2024, 05:39 PM
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Senior Member
 
Join Date: Dec 2011
Location: Moraga, CA
Posts: 808
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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.
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(Very) Slow-Going Build Thread: Stock 1970 Short Step with Stock 1970 LT-1 http://67-72chevytrucks.com/vboard/s...d.php?t=567340 Last edited by mattfranklin; 04-23-2024 at 05:39 PM. Reason: typos |
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