The COC-4929 is the Comp Cams valve spring installed height check micrometer that suits up to 1.500” diameter retainers and has an adjustment range for” 1.600 to 2.200”.
The COMP Cams valve spring installed height micrometers are the quickest, easiest, and most accurate way to measure valve spring installed height. They install just like a valve spring, the tool is then expanded until it has fully seated the valve, locks, and retainer. By simulating the installation of an actual valve spring, the user can read the measurement more precisely.
