HPX Hyd. Roller Lifter Set Chevy LS Series

The ISKY CAMS HPX Hydraulic Roller Lifter Set for Chevy LS Series engines is a complete 16-piece hydraulic roller lifter assembly engineered for high-performance LS-series engine builds. These lifters feature ISKY's HPX Silver Series design, incorporating a hydraulic roller mechanism that significantly reduces friction and wear compared to traditional flat-tappet designs. The vertical lift bar configuration provides consistent valve train geometry across all 16 cylinders, making this set a direct bolt-on solution for engine builders and performance enthusiasts upgrading stock valvetrain components.

Hydraulic roller lifters automatically maintain zero lash through internal oil pressure, eliminating the need for manual adjustment and reducing mechanical wear on pushrods and rocker arms. The roller design allows the lifter to roll across the camshaft lobe rather than slide, which decreases friction losses and heat generation—critical factors for extended engine durability under sustained high-RPM operation. The HPX designation indicates ISKY's premium construction standard, ensuring tight tolerances and consistent performance across all 16 units in the set. Each lifter weighs approximately 0.34 lbs individually, with the complete 16-piece assembly totaling 5.37 lbs.

This lifter set is suited for LS engine builders preparing street performance, road course, or drag racing builds where reliability and reduced parasitic drag matter. The hydraulic design accommodates a wider range of cam profiles and lift specifications than mechanical alternatives, providing flexibility for custom camshaft selection. Proper installation requires cleanliness and correct orientation of each lifter within its respective bore. The set is compatible with all Chevy LS-series variants, including the LS1, LS2, LS3, LS6, LS7, LS9, and derivatives used in Corvettes, Camaros, Trucks, and engine-swap applications.