COMP Cams 1.640" O.D. Spring Shim Kit 42046 Dual 6 AN Female O-Ring

Dual 6 AN Female O-Ring Outlets

5% FS (+/- 1 PSI)

4 to 12" Cut to Fit Long Probe

With countless wins in magazine comparison tests

3 L Engine

COMP Cams 1.640" O.D. Spring Shim Kit 42046 Dual 6 AN Female O-RingThis shim kit contains . 015", . 030" and . 060" thick Valve Spring Shims with 1. 640" outside diameter and . 635" . 650" 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. 640" diameter shims of various thickness. This kit includes 16 . 015" thick shims,