Exhaust Valve. Fits Sportster 1957-1985. OEM Replacement. - AV&V
* Stock length & head diameter - 900 & 1000cc Ironhead Models
* 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 # 18033-80
Head Dia = 1.562"
OAL = 3.510"
Stem Dia = 0.3389"
SKU: ROAV-HD03
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