Intake Valve. Fits Sportster 1986-2003 with 883cc to 1200cc Conversion.
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* Highest flow level on the market.
* One piece forged racing grade stainless steel alloy.
* hard black nitride finish.
* bearing quality hardened tip at the end of the stem to prevent premature wear with high-lift applications.
* 45o angle below the lock groove to facilitate the valve seal installation.
* Heat treated with a special process.
* stem is centerless ground for longer life.
Head Dia = 1.720in.
OAL = 4.560in.
Stem Dia = 0.3108in.
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Fitment Note: Seats must be machined deeper and their I.D. must be enlarged to accept these valves.
*** AV-1720 can be used on XLin.04 up but will require additional purchase of XL’86-03 5/16in. valve guides and Valve spring kit.
