Manley valve spring shims are available in a wide variety of thicknesses. They are high-quality valve spring shims are heat-treated to resist wear.

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COMP Cams Valve Spring Shim, Steel, Hardened, 1.250 in. OD, .814 in. ID .015 in. Thick, Set of 16

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COMP Cams Valve Spring Shim, Steel, Hardened, 1.437 in. OD, .645 in. ID .060 in. Thick, Each

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