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The Comp Cams spring shim kit for LS engines is sized 1.300in outer diameter by .520in inner diameter and provides precise spacing for valve spring assemblies. These shims are intended to help achieve correct installed heights and valvetrain preload during spring or retainer setup in LS‑series cylinder heads, offering measured adjustment when replacing or reconditioning spring components.
Comp Cams Spring Shim Kit 1.300in O.D. x .520in ID for LS Engines
