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The COMP Cams 0.030" valve spring shim with a 1.437" outside diameter and 0.645" inside diameter equalizes installed spring heights to improve valvetrain consistency. Made from high-quality shim stock and heat-treated to resist aggressive cam lobe wear, these shims help maintain uniform spring seat height across cylinders. Available individually or in kits for complete valvetrain adjustments.
COMP Cams Spring Shim .030 X 1.437
