The COMP Cams GM Gen V LT upgraded rocker arms are a great way to increase the durability and performance of your engine's valve train in high-rpm race and street applications. COMP's factory technicians upgrade the stock rocker arms with heavy duty billet steel trunnions, high needle count full complement roller bearings and hardened steel retaining rings for a complete package. These upgraded rocker arms improve the reliability of your GM Gen V LT rocker arms and are a must whenever installing a high performance cam or higher load valve springs.