Quote:
Originally Posted by rotorwrench
Many of the late replacement valves are stainless steel. This always leaves the possibility for problems when used with an iron guide........
If a person runs all stainless valves, they might consider a bronze/brass guide insert for the old iron guides.
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Quality SS 1.5"/1.6" Chevy (flathead) exhaust valves, like those from Manley, have chrome stems that should minimize/eliminate any problems with iron guides.