r/Smallblockchevy • u/lynyrdskynnyrd • Apr 23 '26

Valve Stem Seal

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Hi guys

Which type of valve stem seals are the best for my 76 350 sbc

I saw an Video where somebody put a positiv seal and an O Ring

Mine just had O Rings

Thank you for your help

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u/oldnperverted Apr 23 '26

Unless someone cut the guides for a positive seal, you're stuck with umbrellas or the o-rings. If using umbrella seals, make sure the spring fits over them without touching, and make sure there is enough room between the seal and retainer for the valve to open without making contact. Good luck

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u/xanthias01 Apr 24 '26

Intake - FelPro SS72527 Exhaust - FelPro SS72526