Comp Cams 1.640 SPRING SHIM KIT Build Better Studio Provides optimal protection for the

Provides optimal protection for the urea tank with minimal clearance loss

Carrera 1997 Porsche 911 Turbo

Reliable RUYAGE Quality & Support:

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Comp Cams 1.640 SPRING SHIM KIT Build Better Studio Provides optimal protection for theSpring Shim Kit: 1. 640" O. D., . 635" . 650" I. D. This 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.