COMP Cams Spring Shims .030 X 1.437

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These .030" thick Valve Spring Shims with 1.437" outside diameter and .645" inside diameter are used to equalize the installed height of valve springs. Made from the highest qualit y shim stock, these shims are heat treated to stand up to radical Cam lobes. Kits are also available.CatalogUser 1 Show more