Height Mic - 1.400 to 2.000 LS Dual Retainers

The PAC Racing Springs Height Mic valve spring height gauge with dual retainers measures spring compression heights from 1.400 to 2.000 inches, delivering precision critical to engine build validation and performance tuning. Engineered for LS engine platforms, this measurement tool carries a 0.001-inch scale resolution, enabling builders to verify spring installed heights to exacting tolerances. The purple anodized finish resists corrosion in shop environments and provides clear visual contrast against cylinder head surfaces during inspection.

Spring installed height directly affects valve train geometry, rocker arm angle, and pushrod geometry in LS applications. Incorrect spring height introduces excessive loads on valve seats, reduces valve lift, or creates rocker arm geometry issues—each outcome compromises valve sealing, combustion efficiency, and component longevity. The PAC Racing Springs height gauge accommodates dual retainer configurations common in high-lift, high-rpm LS builds. At 0.19 lbs and compact dimensions (2.4 x 2.35 x 3.9 in), the tool integrates easily into engine bay or workbench workflows without adding bulk to your pit setup.

This height mic serves engine builders, performance technicians, and serious enthusiasts validating valve train assemblies on naturally aspirated and forced-induction LS powerplants. Whether you're assembling a street 5.3L, a dedicated track 6.0L, or a competition 427, verifying spring heights before final assembly prevents costly valve float, rocker rash, and mid-season failures. The 1.400 to 2.000-inch range covers the spectrum of LS spring applications, from stock replacement to high-rpm performance springs.

PAC Racing Springs height gauges are industry-standard measurement tools among professional engine builders and OEM service centers. The 0.001-inch resolution eliminates guesswork during pre-installation validation, ensuring every component meets specification before assembly torque is applied. For LS engine builders who demand accuracy at every stage, the PAC Racing Springs height mic with dual retainer compatibility represents a non-negotiable addition to precision measurement equipment.