GEN 3 Hemi VVT Lift Spring .650in 09-Up

The GEN 3 Hemi VVT Lift Spring .650in 09-Up from Brian Tooley Racing is engineered for serious Hemi engine builders seeking precise valve train control and reliability during high-RPM operation. This lift spring is purpose-built for 2009 and newer generation three Hemi engines equipped with variable valve timing (VVT) technology, addressing the demanding requirements of street, strip, and competition applications. Whether you're tuning a daily driver or developing maximum horsepower on the dyno, selecting the correct spring rate is fundamental to maintaining valve seating integrity and preventing float.

The .650-inch lift specification indicates this spring is designed to manage the valve train geometry at higher lift profiles than stock, delivering consistent valve control across the RPM band while accommodating VVT system dynamics. Brian Tooley Racing springs are manufactured to exacting tolerances, ensuring uniform spring rates and eliminating the variability found in inferior aftermarket alternatives. The precise engineering behind lift springs directly impacts valve float prevention, which is critical at elevated boost levels or aggressive cam timing—allowing the intake and exhaust valves to fully seat on every cycle and maintain combustion sealing.

Installers and engine builders working on 2009-and-newer Hemi platforms will appreciate the OEM-style fitment and compatibility with factory valve train components, eliminating the need for costly machine work or supplementary modifications. This spring pairs effectively with high-lift camshaft upgrades, turbocharger conversions, and supercharger packages where stock springs cannot reliably manage valve motion. Brian Tooley Racing's reputation for precision manufacturing makes the GEN 3 Hemi VVT Lift Spring .650in 09-Up an ideal choice for builders prioritizing long-term durability and repeatable performance across multiple heat cycles and sustained high-load scenarios.