These lightweight rocker assemblies greatly reduce side loadings on the valves therefore increase valve guide life. Can be worth up to 4hp and 4lbs ft torque on a mildly tuned 1275/1380 motor. Titan Full roller rockers have a roller on the rocker tip and the rocker itself has a roller bearing on to the shaft. This Gives near frictionless movement. Roller tip rockers just have a roller on the tip of the rocker and have a normal bush on to the shaft.