Proform Tall Valve Spring Height Micrometer; Range: 1.600" - 2.100" (For Most V8 Engines) 32022BK The GF-125 Single Layer

The GF-125 Single Layer

1968-1974 Chevrolet P30 Van

Four-hole design enhances carb signal to improve throttle response and increase torque

providing the most accurate reading in an analog dial

(4) Vacuum Ports " (1) Each 1/4 NPT & 3/8 NPT & (2) 1/8 NPT w/ Indirect Baffled Signal

Proform Tall Valve Spring Height Micrometer; Range: 1.600" - 2.100" (For Most V8 Engines) 32022BK The GF-125 Single LayerMeasure 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