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    AV&V™ Extreme Duty Replacement Valves

    These superb valves are one piece forged from a racing grade stainless steel alloy. Our liquid nitriding process creates a valve that is smoother and stronger than traditional O.E.M. or replacement valves. The stems are centerless grinded to a micro finish for longer life.

    AV&V Extreme Duty valves also feature a 45° angle below the lock groove to facilitate valve seal installation.

    Part number Type Head Dia. Overall Length Stem Dia. Coating Tip Length Groove Back angle tulip Note
    HD03 Exhaust 1.561" 3.505" .3389" Black nitride .155" Single 20° For 900/1000 Sportster. 11/32" stem
    HD04 Intake 1.812" 3.615" .3108" Black nitride .200" Single 20° For 900 Sportster. 5/16" stem
    HD05 Intake 1.940" 3.615" .3108" Black nitride .200" Single 20° For 1000 Sportster. 5/16" stem
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