Comp Cams-4756 Valve Spring Shim Kit - 1.640 Od.635-.650 Id.015.030.060 Thickness Mufflers Requires 2 x D size

Requires 2 x D size batteries (not included)

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Comp Cams-4756 Valve Spring Shim Kit - 1.640 Od.635-.650 Id.015.030.060 Thickness Mufflers Requires 2 x D sizeThis shim kit contains . 015 inch, . 030 inch and . 060 inch thick Valve Spring Shims with 1. 640 inch outside diameter and . 635 inch . 650 inch inside diameter are used to equalize the installed height of valve springs. Made from the highest quality shim stock, these shims are heat treated to stand up to radical cam lobes. Kits are also available.