The GSC P-D valve spring shim (part 6085) is a precision replacement shim specified for use with GSC kits GSC5068, GSC5069 and GSC5266. Intended for valve spring service and reassembly of those kits, the shim restores the specified spacing within the valve train assembly and maintains consistent dimensions for reliable fitment when used with the named GSC valve spring kits.
GSC P-D Valve Spring Shim 6085 - Fits Kits GSC5068 / GSC5069 / GSC5266