Tech Tips:
Use with Twin Cam O.E. Style umbrella seals (2005-17)
Thickness .022"
OD= 1.441"
ID= 1.010"
Sold as a pack of 20
This Valve Spring Shim allows the engine builder to adjust spring pressure by combining various thickness shims. Using the different thickness is of great help when trying to obtain consistent spring pressure across all valves.
