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The COMP Cams 0.030" valve spring shims with a 1.500" outside diameter and 0.645" inside diameter help equalize installed spring heights for consistent valvetrain performance. Made from high-quality shim stock and heat-treated to resist wear from radical cam lobes, they preserve spring seat height under aggressive cam timing. Available individually or in kits to match application needs.
COMP Cams Spring Shims .030 X 1.500
