Valve Springs - Single 1.090

The Valve Springs - Single 1.090 by CROWER (MPN 68190-24) is a precision engine component engineered for high-performance automotive applications where reliable valve actuation is critical. This single valve spring is designed for builders and mechanics who demand consistent performance in modified or race engines, where stock springs cannot handle elevated RPM loads or aggressive cam profiles. Whether you're upgrading a street performance engine or assembling a competition powerplant, this spring provides the response characteristics needed for predictable valve operation under demanding conditions.

Built to CROWER's exacting standards, the Valve Springs - Single 1.090 features a 289 lb/in spring rate with a 0.920-inch coil bind specification and 1.090-inch outer diameter, allowing precise valve control across the entire RPM range without coil bind interference. The spring's geometry and rate are calculated to maintain consistent seat pressure while preventing valve float at high engine speeds—a critical factor in maintaining reliable combustion and preventing catastrophic valve-to-piston contact. The measured weight of 2.65 lbs and compact dimensions make these springs suitable for tight engine bay configurations while delivering the durability required in high-lift, high-velocity applications.

This product is ideal for engine builders, performance shops, and serious enthusiasts upgrading small-block applications with aftermarket cylinder heads and cam packages. The set of 24 springs provides complete coverage for dual-valve head configurations, ensuring matched valve control across all cylinders. Installation requires proper seat height adjustment and verification of installed height to achieve correct preload—a critical step that directly impacts engine reliability and performance. Verify compatibility with your specific head, cam profile, and target RPM range before installation.