Description & Size Guide
Standard size replacement. Dimensions: 1.85" head dia. x .310" 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. Manley''s ''Severe Duty'' valves insure a stable valve train; even at high R.P.M.''s. Note: Evo Big Twin intake valves are identical to 99-04 Twin Cam valves. Evo exhaust valves are 1.615"; Twin Cam 1.565" in diameter. Length is identical. 1.615" valves can be installed on stock seats of Twin Cam models; after valve seat machining. Information supplied by Manley Performance Products; Inc.
84-99 Evo Big Twin; 99-04 Twin Cam (NU)
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