S&S Cycle 106-6059 S&S® Performance Replacement Standard Compression 76cc Cylinder Heads For 1984-'99 HD® Big Twins - Natural Aluminum Finish Flask Length Imperial: 38-3/8" Material: Stainless

Length Imperial: 38-3/8" Material: Stainless Steel Mounting Position: Front

as well as two daggers that cross the band

wire extensions

Method® billet ignition switch cover is recommended (sold separately) when keeping factory ignition switch location and factory fork lock function

performance and value - style that works

S&S Cycle 106-6059 S&S® Performance Replacement Standard Compression 76cc Cylinder Heads For 1984-'99 HD® Big Twins - Natural Aluminum Finish Flask Length Imperial: 38-3/8" Material: StainlessS&S Cycle 106 6059 S&S Performance Replacement cylinder heads for 1986 '99 HD Evolution big twin engines are designed to be compatible with a stock style flat topped piston. This set has a 76cc combustion chamber that gives a slight increase in compression for great results with most performance cams. Larger than stock 1. 900" intake and 1. 575" exhaust valves provide plenty of air while maintaining port velocity for good low and midrange response.