Valve Exh; XL'04-21 1200cc OEM Repl

* Extreme Duty

* High Flow

* one piece forged racing grade stainless steel alloy.

* Liquid nitriding process creates a valve that is smoother and stronger than O.E.M.

* Stems are centerless ground for a longer life

* 45o angle below the lock groove to facilitate the valve seal installation

* Replaces OEM # 18691-02

Head Dia = 1.575in.

OAL = 4.620in.

Stem Dia = 7mm / 0.2755in.