The steel 188/220 cam is listed for drag-strip and stock-class pulling applications. It requires at least two bushings in the cam tunnel, plus the piston-to-valve clearance checks detailed below.
Our 188/220 cast cam is intended for daily-driver and light-competition Cummins builds, with a listed operating range of 1,700–4,500 RPM. Check the piston-to-valve clearance requirements below before choosing this grind.