Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 1989 SBC Valve Stem Seals
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Old 10-13-2012, 04:08 PM's Avatar is online now
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89 uses the positive intake seal and plastic exhaust umbrella and O ring.

It is possible that the seals were not correctly installed or the valve guides were not properly checked/sized during the "rebuild".
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