As with all other parts in the valvetrain, the area where the spring sits takes a beating. The old standard shims simply will not hold up to the extreme pressures and high rpm found in today's performance engines. COMP Cams offers this set of valve spring shims to solve this problem and eliminate failures.

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COMP Cams Valve Spring Shim, Steel, Hardened, 1.640 in. OD, .650 in. ID .060 in. Thick, Set of 16

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COMP Cams Valve Spring Shim, Steel, Hardened, 1.500 in. OD, .645 in. ID .030 in. Thick, Each

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MANLEY Valve Spring Shims, Hardened, Steel, 1.500 O.D, .030 in. Thick, Each

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Crow Cams SHIM 1.640" x .640" x .015"

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MANLEY Valve Spring Shims, Hardened, Steel, 1.480 O.D, .015 in. Thick, Set of 50

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