Comp Cams 4930 Valve Spring Height Micrometer; For 1.600″ to 2.200″ Springs (For Beehive™ Springs)
• Quickest, easiest, most accurate way to measure valve spring installed height
• Install just like a spring, then is expanded until it fully seats valve, locks and retainer.
• Simulated installation allows ultra precise readings
• Tool is read like a micrometer and is accurate to .001”