K line positive seal with protector sleeve on stem and install driver. Basically you just tap it down on the guide. Guide tops had been machined to .530" for positive seals previously. These were used as original equipment on some Harley motorcycles. The stems were lubed so no dry startup. I had already shimmed the spring pockets for 1.670" spring height.
Stock style Felpro umbrella seals on the exhaust valves. These will ride up on the stem and stay after startup.
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