Valve Adjusting Shim Kits. All neatly arranged in a compartment box are three each of shim sizes .085? to .092?; four each of sizes .093? to .103? and three each of sizes .104? to .124? ?? that??s 130 shims at a retail value of more than $500! All shims made by Xks Unlimited with either part number (standard A-Z range) or size (.111? to .124?) laser etched on shim.