[Jesse Knapp]

Looking at my notes the installed height was 2". Length of your valve and retainer thickness dictates the distance between the backside of the retainer and the spring pocket. In my case, I had the long valves, with Comps retainer, forgot the thickness of that, my shim thickness ranged from .100 to .120 on intakes, .150 to .165 on exhaust. At some point I had changed the retainers to thicker ones reducing the shim thicknesses, but can't find those notes. A good installed height mic. is necessary here. Is this a chevy engine and a smallblock? Back to the removal tool, when installing it make sure it clears the spring while sitting on the mount before bolting it up. I mentioned shim height b/c if the tool touches the spring before you bolt it, it doesn't line up right. Other than that call LSM and maybe the shaft system co. as well. Hope this helps.