06-17 T/C 79CC BLACK CYL HEADS

Must use the included S&S valve cover gasket kit with stock rocker covers. Must use S&S rocker boxes if S&S compression releases are used. Made in the USA Compatible with stock rocker boxes, exhaust, and intake manifolds Should not be used with any piston having a pop up dome. S&S® High performance valve springs allow the installation of camshafts with up to .650" lift Moderately sized 1.940" intake and 1.575" exhaust valves maintain port velocity in smaller displacement engines for good low and midrange response Machined for S&S® electric or manual compression releases Combustion chamber provides a significantly higher than stock, but still manageable compression ratio Designed for stock 88" to 103" engines or slightly modified engines up to 110" Heads are fully assembled with springs and valves Not compatible with '14-'16 FLHTK/FLHTKL, FLHTCUTG Twin-Cooled motors or '17 touring models. Heads can be decked up to .060" to increase compression, but will require piston valve pockets to be re-machined