COMP Cams Single Inner Valve Springs 973-1 High-Quality Engine Springs

COMP Cams Single Inner Valve Springs 973-1 — High-Quality Engine Springs COMP Cams Single Inner Valve Springs 973-1 are precision-engineered to deliver consistent valve control, long life, and proven performance for street, strip, and race engines. Designed as the inner component of a matched spring assembly, these springs let you tailor spring pressures and dynamics to your exact application. Key Features Premium material & process — Manufactured with COMP Cams' proprietary metal selection and production methods for superior durability and fatigue resistance. Precision wound — Accurate free heights and rates ensure repeatable performance and predictable valve dynamics. Customizable assembly — Combine with outer springs, retainers, and locks to achieve desired seat and open pressures. Race-proven — Engineered to meet the demands of high-RPM, high-load engine environments. Benefits Improved valve control and spring stability at high RPMs Extended service life and resistance to coil bind and fatigue Flexible setup options for OEM replacements, performance builds, and competition engines Choose COMP Cams 973-1 Single Inner Valve Springs for a reliable, high-performance foundation when building or upgrading your valve spring assembly. Backed by COMP Cams' engineering and racing heritage, these springs help you extract maximum performance while protecting valvetrain components.