Package Includes: 16 x 660 Lift Dual Valve Springs; 16 xSteel Retainers; 16 xSpring Locators for stock guides; 16 xValve Stem Seal Set; 32 x Locks
Replacement for Gen3 and Gen4 LS Engines, replacement for LS1 LS2 LS3 LS4 LS6 LQ4 LQ9 4.8 5.3 6.0 6.2 engines
The valve spring makes the valve is seated in time, avoids the valve beating when the engine is vibrating, and effectively matches to maintain the air tightness of the valve
Please check your vehicle model, engine model and the part number you need before buying that it is correct