Intake Valve. Fits Big Twin 1984-2004. 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 # 18074-83

Head Dia = 1.845″

OAL = 4.458″

Stem Dia = 0.3108″

MFR PART No: AV-HD11
REVELRY PART No: AV-HD11