PROFORM 66902 Valve Spring Height Micrometer, 1.600-2.100 in Range

The PROFORM 66902 Valve Spring Height Micrometer is designed for accurate valve spring installation and cylinder head setup. Its 1.600-2.100 inch measuring range helps verify installed spring height across a wide variety of performance engine applications, making it a practical tool for engine builders, cylinder head specialists, and serious enthusiasts.
The micrometer features a clearly readable 0.001 inch scale for precise measurements during valve train assembly. Accurate spring height measurement supports proper spring pressure, coil bind clearance, and retainer-to-seal clearance checks, helping ensure dependable valve train operation and reduce the risk of setup-related problems.
Built for repeated use in the workshop or garage, the PROFORM 66902 provides a straightforward way to measure installed valve spring height without relying on approximate methods. Its compact design is easy to position between the spring seat and retainer, while the direct-reading scale allows adjustments to be checked efficiently during assembly and tuning.
Feature: 1.600-2.100 inch measuring range for a broad selection of engine applications. Feature: 0.001 inch scale provides precise spring height readings. Feature: Designed for checking installed valve spring height during cylinder head assembly. Feature: Suitable for professional engine builders, performance technicians, and automotive enthusiasts. Feature: PROFORM part number 66902 for reliable product identification.

Features:

• 1.600-2.100 inch measuring range for a broad selection of engine applications

• 0.001 inch scale provides precise spring height readings

• Designed for checking installed valve spring height during cylinder head assembly

• Suitable for professional engine builders, performance technicians, and automotive enthusiasts

• PROFORM part number 66902 for reliable product identification