Exhaust Valve. Fits Big Twin 1984-1999. OEM Replacement.

* Stock length & head diameter

* 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 # 18082-83

Head Dia = 1.615"

OAL = 4.525"

Stem Dia = 0.3106"