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Do you have to vent the valve covers on a 350 chevy?

April 26, 2017chevy covers valve vent

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Do you have to vent the valve covers on a 350 chevy?

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Define “vent”. If you mean to vent crankcase gasses, yes, that’s the purpose of a PCV valve. If you mean does the valve cover need vents to facilitate cooling… no. Many rocker covers have vents but it’s strictly for decoration.