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The stems of these valves are hard-chrome plated, the valve stem ends are additionally hardened. The flow-determining angles and radii have been redesigned for optimised gas flow. Manley 'Street-Master' valves are suitable for use with all fuel types, leaded or unleaded, and are supplied in pairs.
Note
Fits Harley-Davidson Big Twin 84-04 (Evolution & Twin Cam 88)
