.937 Dia. Inner Valve Springs- .697 ID.

The .937 Dia. Inner Valve Springs with .697 ID (SKU COM974-16) are precision engineered components designed for serious engine builders and performance enthusiasts who demand reliable valve train control. These inner valve springs are critical to maintaining proper valve seating, preventing valve float at high RPM, and ensuring consistent engine performance across demanding driving conditions. Whether you're building a high-revving naturally aspirated engine or rebuilding a tired performance motor, quality inner valve springs are non-negotiable for durability and reliability.

COMP Cams' .937 diameter inner springs are manufactured to exacting tolerances, with the .697 inch inner diameter precisely matching OEM and aftermarket valvetrain geometry. Inner valve springs work in tandem with outer springs to control valve velocity, reduce wear on valve seats and guides, and provide the dual-spring system necessary for stable operation at elevated RPM levels. The spring rate and preload characteristics are calibrated to complement popular performance camshaft profiles, preventing valve bounce and maintaining crisp throttle response without sacrificing reliability or component longevity.

These inner valve springs benefit engine builders tackling cam upgrades, top-end rebuilds, or complete engine assembly on street and competition platforms. They pair effectively with COMP Cams outer springs and valve components for a cohesive valvetrain package that handles moderate to aggressive cam profiles without compromise. Always verify spring compatibility with your specific cylinder head, valve sizes, and installed camshaft specifications before ordering; inner and outer spring combinations must work together as a matched set for optimal valve control and engine stability.