Upgrade your GM LS engine with the Morel LS7 Hydraulic Roller Lifters 7717/6504, meticulously engineered to deliver exceptional performance and reliability. These lifters are compatible with a wide range of LS engines, including 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, and 7.0L displacements. The innovative drop-in design retains the stock-style lifter guide, eliminating the need for link-bar lifters and streamlining the installation process. Crafted by Morel, a trusted name in high-performance engine components, these lifters are built to withstand the demanding conditions of performance LS engines, ensuring proven durability. This comprehensive set includes 16 hydraulic roller lifters, providing all the necessary components for a complete installation. By ensuring precise valve operation, these lifters contribute to enhanced engine efficiency and longevity, making them an excellent choice for both street and strip applications.