Brian Crower Spring & Retainer Kit for Nissan SR20DE/DET Single Spring Steel

Brian Crower Spring & Retainer Kit for Nissan SR20DE/DET — Single Spring Steel Brian Crower precision valve spring and retainer kit engineered specifically for the Nissan SR20DE/DET engines. Built from high-strength steel, this single-spring kit delivers reliable valve control for high-rev performance and daily driving durability. Fitment: Direct replacement for Nissan SR20DE and SR20DET cylinder heads Material: Heat-treated single spring with hardened steel retainers for long service life Performance: Optimized spring rates to prevent valve float at increased RPMs while maintaining smooth idle Durability: Precision wound springs resist sag and maintain consistent seat pressure under repeated loads Application: Ideal for mild to moderate power upgrades, street, and track use Each kit is manufactured to Brian Crower's strict tolerances for consistent coil bind, installed height, and seat load. Easy to install and backed by a reputation for motorsport-proven components. Upgrade your SR20 with a dependable spring and retainer solution that balances performance, reliability, and longevity.