Restore Engine Performance: This cam kit provides an excellent solution for thoroughly repairing valve system wear, leaks, and fatigue issues. Increased Strength: The truck camshaft, after high-frequency hardening, has higher density and hardness, enabling it to resist the corrosion of engine oil and coolant in harsh operating conditions. Enhanced Wear Resistance: The engine camshaft and pushrods are made from durable grey cast iron, offering wear resistance and fatigue strength. They are designed to withstand thousands of impacts per minute in the engine, reducing wear on the contact surfaces between the cam lobes and lifter pillars. Complete Kit: Camshaft OE: 12625437, SP011-16. This cam kit includes 5 components: camshaft, pushrods (with balls), springs, valve seals, and valve plugs. All core parts are designed to match OEM specifications. High Compatibility: Our camshaft and push rod kit is compatible with Norris trucks from 1999-2013 GM Gen3/4. Fits LS truck engines, suitable for 4.8L, 5.3L, 6.0L, and 6.2L engine displacements.