16PCS Valve Lifters For LS1, LS2, LS3, LS7 GM 4.8L, 5.3L, 5.7L, 6.0L, 6.2L Fedex Express GenericFeatures: Lifter Kit for LS engines. Contains 16 new GM LS7 Style Lifters and is the same lifter used in the LS7 427 performance engine. This lifter kit was be incorporated into performance engine builds and utilizes improved valving for higher RPM capability. These hydraulic roller lifters can be used as direct replacements for your LS engine or as a great solution for an AFM delete on an L99, L76, or even a Gen 5 LT engine. LS Series Hydraulic