GM Delphi LS7 Hydraulic Roller Lifter Set

The TSP GM Delphi LS7 Lifters Set (P/N 28-25341990-16) represents the performance industry standard for LS and LT valvetrain reliability. This set includes 16 individual, precision-engineered hydraulic roller lifters. Originally designed for the Corvette Z06, the Delphi LS7 lifter is built to withstand higher RPMs and increased spring pressures than standard factory lifters. This makes them a robust and reliable upgrade for enthusiasts seeking peace of mind, whether their vehicle is a daily driver or a dedicated track machine. The components are brand new and genuine Delphi products, ensuring quality and performance. These lifters are specifically for Non-DOD applications. If your engine was originally equipped with AFM or DOD, it is mandatory to install an AFM removal kit and a compatible camshaft before using these lifters. The fitment covers GM Gen III/IV LS and Gen V LT engines, including platforms such as 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L, with compatible codes like LS1, LS2, LS3, LS6, LS7, LM7, LQ4, LQ9, L83, L86, and LT1. For optimal installation, it is strongly recommended to install new guide trays when replacing lifters. Texas Speed & Performance also recommends pre-soaking the lifters in fresh engine oil for 15-30 minutes before installation to ensure immediate lubrication upon first startup.