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I bought a new head and I was wondering if the valve guides need to be reamed before assembling the valves? I have the shop manual, and it discusses this, but not necessarily for a new head? If it must be done, where can I buy the tool? None of the major magazines or web sites have one listed in their tools section.

Thanks

Put some oil on the valve stem and see how they fit in the guides. they should move freely with VERY little side to side play. if they are tight take the head and valves to a machine shop for reaming.