COMP Cams 1.250" O.D. Spring Shim Kit 003111NR Threaded aluminum bolt is 6"

Threaded aluminum bolt is 6" long with 1-1/8"-12 fine threads and is commonly used on big bar

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COMP Cams 1.250" O.D. Spring Shim Kit 003111NR Threaded aluminum bolt is 6"This shim kit contains . 015", . 030" and . 060" thick Valve Spring Shims with 1. 250" outside diameter and . 814" 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. This COMP shim kit includes a number of 1. 250" diameter shims of various thickness. This kit includes 16 . 015" thick shims, 16 .