1.250in Valve Springs

The COMP CAMS 1.250in Valve Springs are precision-engineered components designed for high-performance engine builds where reliable valve control and sustained RPM capability are non-negotiable. These single springs deliver the consistent lift and timing control that modern performance engines demand, whether you're building a street machine, weekend racer, or pursuing maximum efficiency from a modified powerplant. A set of 16 springs ensures you have matched pairs for complete cylinder coverage, critical for engine balance and longevity.

With a 410 lb/in spring rate and 1.260 inch outer diameter, these valve springs provide the stiffness necessary to control valve float at elevated RPMs while maintaining proper seating force throughout the engine's operating range. The 1.150 inch coil bind specification ensures adequate spring compression clearance before bottoming out, protecting against catastrophic valve train failure during aggressive operation. COMP CAMS' manufacturing standards guarantee consistent wire diameter, pitch geometry, and preload across all 16 springs, eliminating weak links that could compromise performance or durability in critical applications.

These springs suit builders upgrading cylinder head packages, installing aggressive cam profiles, or increasing engine displacement and boost levels. Proper valve spring selection prevents floating and surging at peak power RPM—common failure modes that rob horsepower and cause bent pushrods or dropped valves. Installation requires precision measurement of installed height and pressure to match your specific cam profile and engine configuration; consult your builder or OEM specifications before fitment to ensure optimal clearances and performance.