Ensure the equal installed height of all of your valve springs with this 1.640" outer diameter, .030" thick, heat-treated spring shim.
Valve Spring Shim - 1.640" OD, .635" ID .030" Thickness
Shim - 1.640" OD, .635" ID .030" Thick
4746-1 - Spring Shim, .030 X 1.640
COMP Cams Spring Shim .030 X 1.640
Spring Shim, .030 X 1.640
Engine Valve Spring Shim
EngValve Spring Shim
None