BTR Brian Tooley Racing .650" Conical Valve Spring Kit | SK017 | Fits 2009+ 5.7L HEMI Engines | High Lift Valvetrain Control Upgrade

The Brian Tooley Racing .650 conical valve spring kit SK017 is engineered for 2009 and newer 5.7L HEMI engines that require increased valvetrain control for performance camshaft applications. The conical spring design reduces mass at the retainer while delivering stable spring pressure across the RPM range, helping prevent valve float and improve long-term durability. Designed for naturally aspirated and performance street builds, these springs support camshaft lift up to .650 inch when properly installed and set up. Developed using BTR’s proven valvetrain engineering, this kit provides reliable performance for modern HEMI platforms.

• .650 Lift Conical Spring Design: Engineered to safely support camshaft lift up to .650 inch while reducing valvetrain mass compared to traditional spring designs.
• Improved Valvetrain Stability: Conical profile helps maintain consistent spring pressure and reduce valve float at higher RPM.
• Optimized for 5.7L HEMI Engines: Designed specifically for 2009 and newer 5.7L HEMI platforms using performance camshaft profiles.
• Performance Upgrade Ready: Ideal for camshaft upgrades, cylinder head service, and valvetrain improvements in street performance builds.
• Brian Tooley Racing Engineering: Developed with BTR’s proven valvetrain expertise to ensure durability, consistency, and reliable performance.