Oversize H/Duty Intake Valve Guide. Fits Big Twin 1984-2004 & Sportster 1986-2003. +.025in. Outside Diameter. - AV&V

* Use with .530 Viton valve seals # AV-V312530

* Manganese-Bronze

* .050" shorter seal area for high lift applications

* Profiled for optimum airflow.

* High temp viton o-ring seal

* Smooth lead-in

* CNC machined

Tech Tips:-

* Guide ID unfinished

* OD = .5875" +.025" OS

* ID = .3090"

* AV-VGRC-3120 Reamer recomended for AV&V guides & valves

* OD can be resized as required

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