S&S CYCLE Cylinder Heads - 91 cc - Super Stock™ - Twin Cam 900-0349

Cylinder Heads - 91 cc - Super Stock™ - Twin Cam
Designed specifically for S&S® T-Series T2 long block engines for Harley Davidson® big twins and engines with S&S® 4-1/4" bore Hot Set Up installed, 2.000" intake and 1.605" exhaust valves coupled with S&S® ports, supply plenty of air for these big motors, S&S® High performance valve springs allow the installation of camshafts with up to .650" lift, Compatible with stock rocker boxes, exhaust, and intake manifolds, Manifold mounting surface is machined to stock dimensions, Made in the USA, A special manifold/throttle body is required for engines that are not stock height., Not machined for compression releases., Must use S&S valve cover gasket kit with stock rocker covers., Not compatible with '14-'16 FLHTK/FLHTKL, FLHTCUTG Twin-Cooled motors or '17 touring models.