Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Valve stem seals pontiac
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Old 07-19-2013, 06:31 PM
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Apparently a previous owner of those heads knurled the valve guides. That is a 10,000 mile repair of worn valve guides.

Take the heads to a competent machine shop and get a good valve job, have K-line phosphor-bronze valve guide liners and .530" I.D Viton rubber, metal clad, positive stop valve seals for 11/32" valve stems installed. Use Comp Cams 518-16 valve seals or equal.
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