Manley, Severe Duty stainless valves, intake. STD 57-69 XL (NU)

Standard size replacement. Dimensions: 1.813" head dia. x .309" stem dia. Standard overall length. Severe Duty valves. Proven quality over many years. Manufactured from high temperature stainless alloy to a perfect finish. Manley valves feature swirl polished performance orientated shapes and durable chrome plated stems. Up to 30% weight reduction over stock components. Manleys Severe Duty valves insure a stable valve train even at high R.P.M.s. 57-69 XL (NU)