.750" Lift Dual Valve Spring Kit w/ PAC 1209X Springs

The Texas Speed & Performance LS Dual Valve Spring Kit with Titanium Retainers is engineered for high-performance LS engines, offering a .750" maximum valve lift. This kit utilizes PAC Racing's 1209X dual valve springs from their RPM Series, representing the latest in valve spring technology with advanced materials and processes for extended spring life. This spring kit is an ideal upgrade for various applications. It is well-suited for customers employing aggressive lift hydraulic roller camshafts, as well as those using factory GM rocker arms with a low-lash solid roller camshaft. The kit's specifications include an install height of 1.800", closed spring pressure of 160 lb. @ 1.800", and open spring pressure of 510 lb. @ 1.100". The coil bind is at 1.000". PAC Racing recommends the use of quality aftermarket lifters with this valve spring kit; OE lifters are not advised. This setup is particularly beneficial for engines operating at 7,000+ RPM, those used in endurance racing, or applications running 20+ psi of boost in supercharged or turbocharged systems. The kit includes spring seats, valve seals, PAC 1209X dual springs, and titanium retainers. It reuses OE GM valve stem locks, which are not included in the kit.