RZR 170 RZR170 Cylinder Head Rebuild Kit Valve Kit Springs Namura Top End Gasket. Complete Polaris RZR 170 Cylinder Head Rebuild Made Easy! This complete cylinder head rebuild kit has everything you need to refresh your RZR 170 Cylinder Head. Fits Polaris RZR 170 All Years & Models! Includes aftermarket OEM spec valves, valve springs, […]