* Designed for Harley-Davidson heads
* Same Guide fits Inlet & Exhaust
* Use with OEM style valve seals
* Manganese-Bronze
* High temp viton o-ring seal
* Smooth lead-in
* CNC machined
* Guide ID unfinished
* OD = .566" Std size
* ID = .375"
* AV-VGRC-3782 Reamer recomended for AV&V guides & valves
* Replaces OEM # 18138-79
