Billet 1.3 ratio rocker arms. Kit includes 1.3:1 ratio billet steel rocker arms, heavy duty billet steel rocker studs, lash caps, rocker pivots, adjuster nuts, set screws and a billet steel guide plate. Quality rocker arm set. Some applications require the rocker stud post to be milled down approximately .120". Installation instructions included. Fits Honda GX160/200, 196cc clones and Non-Hemi 212cc Predators. Does not work in Hemi Predators.