Valve, Intake/Exhaust, Stainless 25mm porting Piston must be milled for

Piston must be milled for zero deck height

5* duration @

If your engine has the thin metal gasket you can mill the cylinder head to bring the compression back up

Includes two retainers and four keepers

Valve, Intake/Exhaust, Stainless 25mm porting Piston must be milled for16390 Stainless steel valve undercut and micro polished for high flow. Lighter and stronger than stock valves. Must use lash caps 14160 and our retainer keeper set 16360. Must have for any high performance application. This 25mm valve is the stock size intake valve for Honda GX160 200, 196cc clones, 212cc Predator Non Hemi (1st & 3rd Gen) and it's stock size exhaust for the 212cc Predator Hemi engine (2nd Gen).