Stainless steel intake valve. 27mm. Undercut for high flow. Micro polished stems for reduced friction. Lighter and stronger than stock valves. Must use lash caps 14160 and our retainer/keeper set 16360. Stock size intake valve for Hemi 212cc Predator. +2mm for Honda GX160/200 and Non-Hemi 212cc Predator. For a +2mm application you need a machinist to open the ID of the stock seat.