Proform Tall Valve Spring Height Micrometer; Range: 1.600" - 2.100" (For Most V8 Engines) 32022BK These parts are designed for

These parts are designed for off-road use only

providing the most accurate reading in an analog dial

The Hi-Tech Rocker Arm Studs work well in race applications with higher rpm ranges and are available in the popular 3/8

QA and Certifications: Hellwig is ISO 9001:2015 and ISO 14001:2015 certified

They are machined out of 6061-T6 aluminum and have a 3/8"-16 stud for your shift knob

Proform Tall Valve Spring Height Micrometer; Range: 1.600" - 2.100" (For Most V8 Engines) 32022BK These parts are designed forMeasure 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. PROFORM invites racers to experience the strength, innovation, and power behind the PROFORM brand. PROFORM Parts (Specialty Auto Parts U. S. A., Inc.) is a leader in the High Performance Automotive Aftermarket by engineering