Valve Spring Height Micrometer PR67390 Head Studs Cobalt Series Mini-Monster Tachometer3-3/4"

Cobalt Series Mini-Monster Tachometer3-3/4"

This is economical and saves time but performance wise is lacking compared to point milling

even at high racing rpm

AF77-5003BLK

Valve Spring Height Micrometer PR67390 Head Studs Cobalt Series Mini-Monster Tachometer3-3/4"Valve Spring Height MicrometerSuit Beehive Springs, Height Range 1. 600" 2. 100" PR67390 67390 Measure installed valve spring height conveniently and accurately. Simply install the height micrometer instead of a valve spring, and then rotate the clearly engraved dial to expand the tool to seat the valve, locks and retainer. Fits most V8 engines with beehive springs.