Pac Racing Springs Spring Shims - 1.040 Od .030 Thick (16) Pac-S183

Pac Racing Springs Spring Shims - 1.250 Od .030 Thick (16Pk) Pac-S189Valve Spring Shim - 0.030 in Thick - 1.250 in OD - Steel - Set of 16

Pac Racing Springs Spring Shims - 1.500 Od .050 Thick (16) Pac-S184Valve Spring Shim - 0.050 in Thick - 1.500 in OD - 0.570 in ID - Steel - Set of 16

Pac Racing Springs Spring Shims - 1.250 Od .050 Thick (16Pk) Pac-S188Valve Spring Shim - 0.050 in Thick - 1.250 in OD - Steel - Set of 16

Pac Racing Springs 1.500 Od 0.570 Id .030 Thickness Shims 16Pk Pac-S185Valve Spring Shim - 0.030 in Thick - 1.500 in OD - 0.570 in ID - Steel - Set of 16

Pac Racing Springs 1.645 Triple Valve Springs - (16) Pac-1258Valve Spring - 1200 Series - Drag Race Series - Triple Spring - 688 lb/in Spring Rate - 1.130 in Coil Bind - 1.645 in OD - Drag Race - Set...