For the enthusiast who chooses a solid lifter cam, COMP Cams offers the highest quality solid lifters available today. These lifters are manufactured using the tightest tolerances in the industry, ensuring optimum performance. The crown of the lifters is ground to a precise radius for proper break-in and to guarantee long life. The oil-metering band is milled to the correct depth to prevent too much oil from being delivered to the top of the motor, and to prevent horsepower loss.