Overview
The LS7 hydraulic roller lifters (GM part number 12499225) are high-performance components designed for LS-series engines, including LS1, LS2, and LS3. These lifters are known for their precision machining and durable construction, offering enhanced valve train stability at higher RPMs. They feature a lightweight design with improved oil metering for consistent performance and reduced friction, making them ideal for both street and racing applications. When paired with the included lifter guide trays, they ensure proper alignment and prevent lifter rotation, which is critical for maintaining smooth engine operation. These lifters are also a popular upgrade for AFM delete kits due to their robust design and compatibility with more aggressive camshafts.
Features
- LS7 hydraulic roller lifters (GM 12499225) are precision-engineered for high-RPM stability and durability in LS1, LS2, and LS3 engines
- Constructed with lightweight internals and optimized oil metering to reduce friction and enhance valve train performance
- Compatible with both stock and performance camshafts, making them ideal for AFM delete applications
- Guide trays included to ensure correct lifter alignment and prevent rotation during engine operation
- Designed to OEM specifications for a direct fit and reliable long-term operation in Gen III and Gen IV LS engines