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, 1.480 in. OD, .765 in. ID .060 in. Thick, Set of 16

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Crow Cams 1.437"x.780"HARD SHIM

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MANLEY Valve Spring Shims, Hardened, Steel, 1.500 O.D, .030 in. Thick, Set of 50

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