Hollow Stem Valves - CLASS RACER FORUM

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Hollow Stem Valves

02-08-2019, 04:17 PM

Jim Hanig

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Join Date: Aug 2006

Location: Pukwana SD

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Re: Hollow Stem Valves

Quote:

Originally Posted by Mike Pearson

I would be afraid to run hollow stem valves in my engine. I have had issues with the Manley exhaust valves dropping the head off and killing the engine. Now I change the valves every time I freshen the engine if they have around 75 runs on them. Not worth the risk.

Mike how much spring pressure do you run? your scaring me .

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