80 81900 Piston System Stainless Steel Valves Yamaha WRF450 2003 2006

Features: Kit includes all necessary parts for a complete top-end service/rebuild: pistons, piston rings, piston pins, gaskets, valves, and valve springs. Pistons fully machined from 2618 aluminum alloy with a performance skirt coating. Lightweight racing valve spring kit with titanium valve spring retainers, dual springs and H.T. steel base washers (springs are suitable for use with high-performance cams). All necessary gaskets, seals and O-rings included. The pistons, rings,valve and pin clips are designed to work togethere as a system.Not compatible with OEM components.. Includes: • 3x Intake Titanium Retainers • 3x Intake CrSi Valve Springs • 3x Intake H.T. Steel Basewashers • 2x Exhaust Titanium Retainers • 2x Exhaust CrSi Valve Springs • 2x Exhaust H.T. Steel Basewashers • 2x Intake Standard Outer White Diamond® Valves • 1x Intake Standard Center White Diamond® Valve • 2x Exhaust Standard White Diamond® Valves • 3x Intake Viton® Seals • 2x Exhaust Viton® Seals • 1x High Performance Piston Kit • 1x Top-End Gasket Kit.