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Valve Angle Intake Valve 30 Degree Back Cut

This is a Manley stainless steel intake valve with a 30-degree back cut just to the inside of the 45-degree seat as evidenced by the machined surface (arrow).
Valve Angle - Make More Horsepower

 This is a Manley stainless steel intake valve with a 30-degree back cut just to the inside of the 45-degree seat as evidenced by the machined surface (arrow).  View Related Article

 

 

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