Product Description
GM Chevrolet Performance 12499225 LS7 Hydraulic Roller Lifter Kit - Original GM Box - Full Set of 16
Fits 1997-2013 GM LS Engines 4.8 5.3 5.7 6.0 6.2 7.0 | Full Set of 16 GM LS7 Lifters
Upgrade your LS or Gen V LT valvetrain with this authentic Chevrolet Performance LS Lifter Kit, commonly known as LS7 lifters. This kit includes 16 new GM hydraulic roller lifters packaged in the original GM box under part number 12499225. Each individual lifter is bagged and labeled with GM part number 17122490, also referenced as ACDelco HL124.
These are the same style lifters used in the Chevrolet LS7 427 performance engine and are a popular choice for LS engine builds, camshaft swaps, AFM/DOD delete conversions, and top-end rebuilds. Designed by GM for performance engine applications, these hydraulic roller lifters feature improved valving for higher RPM capability compared to standard replacement lifters.
Trusted for LS engine rebuilds, camshaft swaps, valvetrain maintenance, and performance applications, these Chevrolet Performance LS7-style hydraulic roller lifters are built for dependable hydraulic roller operation. They are commonly used in GM LS-based engines and may also be suitable for compatible small block Chevy and Gen 2 LT1 applications originally equipped with hydraulic roller lifters. This full set of 16 provides the quantity needed for a complete V8 lifter replacement.
This 16-piece Chevrolet Performance lifter kit is a great choice for customers looking for authentic GM boxed lifters rather than bulk-packaged lifters. They can be used as direct replacement lifters in many LS engine applications or as part of an AFM/DOD delete setup on select L99, L76, and Gen V LT engines when used with the proper supporting components.
Key Features & Benefits
- Full Set of 16 GM Hydraulic Roller Lifters: Includes 16 new GM hydraulic roller lifters packaged in the original GM box under part number 12499225. This is not a bulk-packaged lifter set.
- Individually Bagged GM Lifters: Each lifter is individually bagged and labeled with GM part number 17122490, also referenced as ACDelco HL124.
- Commonly Known as LS7 Lifters: These LS7-style hydraulic roller lifters are the same type used in the Chevrolet LS7 427 performance engine, making them a proven option for LS performance builds, camshaft upgrades, and valvetrain service.
- Improved Valving for Higher RPM Capability: Designed by GM for performance engine builds, these lifters utilize improved valving to support higher RPM capability compared to standard replacement hydraulic roller lifters.
- Great for Cam Swaps & Rebuilds: Replacing lifters during a camshaft upgrade or engine refresh helps support proper valve motion, quieter operation, and better long-term valvetrain reliability. Starting with fresh lifters is a smart move when servicing the top end of an LS engine.
- Great for AFM/DOD Delete Conversions: Commonly used as part of AFM/DOD delete conversions on applications such as L99, L76, and Gen V LT engines when paired with the correct camshaft, lifter trays, valley cover or plugs, pushrods, gaskets, and supporting hardware.
- Hydraulic Roller Application Support: In addition to GM LS applications, these lifters can also work in compatible SBC and Gen 2 LT1 engines originally equipped with hydraulic roller lifters. This gives builders a flexible lifter option across multiple GM performance engine platforms.
Notes
- Kit Part Number: 12499225
- Indvidual Lifter Part Number: GM 17122490 / ACDelco HL124
- Quantity: Full set of 16 new GM LS7 hydraulic roller lifters.
- Packaging: GM Genuine Parts box. Each individual lifter is bagged and labeled with GM part number 17122490.
- Guide Tray Recommendation: Guide trays are not included. New factory-style lifter guide trays are always recommended when installing new lifters.
- Warranty Note: No manufacturer warranty on lifters.
- Installation Note: Proper cleaning, inspection, lubrication, and installation procedures should be followed before engine startup.
Key Fitments
- GM LS Engines: Fits 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, and 7.0L LS-based applications.
- LS Engine Codes: LS1, LS2, LS3, LS6, LS7, LQ4, LQ9, LM7, LY5, LY6, and other compatible GM LS hydraulic roller applications.
- Gen V LT Applications
- Common Vehicle Applications: Chevrolet Silverado, GMC Sierra, Chevrolet Camaro, Chevrolet Corvette, Pontiac GTO, Chevrolet Trailblazer SS, and other GM LS-based applications.
- Additional Hydraulic Roller Applications: Also works in SBC and Gen 2 LT1 applications originally equipped with hydraulic roller lifters.
