BTR Brian Tooley Racing .625" Beehive Drop-In Valve Spring Kit | SP021-16 | Fits 2009+ 5.7L HEMI Engines | Drop-In Valvetrain Upgrade

The Brian Tooley Racing .625 beehive drop-in valve spring kit SP021-16 is engineered for 2009 and newer 5.7L HEMI engines requiring improved valvetrain control without machining or special installation procedures. Designed as a true drop-in solution, these beehive springs reduce retainer mass while maintaining stable spring pressure to support performance camshaft profiles up to .625 inch lift when properly installed. Ideal for street performance builds, daily drivers, and mild upgrades, this kit helps prevent valve float and maintain consistent valve motion while preserving reliability. Developed using BTR’s proven valvetrain engineering, it delivers dependable performance for modern HEMI applications.

• .625 Lift Beehive Spring Design: Engineered to safely support camshaft lift up to .625 inch while reducing valvetrain mass for improved control.
• True Drop-In Installation: Designed to install without head machining or special modifications, simplifying upgrades and service.
• Improved RPM Stability: Beehive profile maintains consistent spring pressure and helps prevent valve float at elevated engine speeds.
• Optimized for 5.7L HEMI Engines: Intended for 2009+ HEMI platforms commonly used in street and performance applications.
• Brian Tooley Racing Engineering: Built with BTR’s valvetrain expertise to ensure durability, consistency, and long-term reliability.