S&S Cycle .574in x 1.450in x .030in Shim

.030 in. Valve Spring Shim for .720 in. and .660 in. lift valve springs as used in B3 heads

• .030 in. Valve Spring Shim for .720 in. and .660 in. lift valve springs as used in B3 heads
• .574 in. x 1.450 x .030 in. black steel