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The COMP Cams 0.030" valve spring shims with a 1.250" outside diameter and 0.814" inside diameter are designed to equalize the installed height of valve springs during valvetrain setup. Fabricated from premium shim stock and heat-treated to handle radical cam lobe profiles, they help preserve consistent spring seat height under demanding conditions. Kits are offered for matching multiple locations.
COMP Cams Spring Shims .030 X 1.250
