Calico Coatings Crew chiefs, engine builders and drivers rely on Calico's CT-1 coating to reduce friction under the hood, providing them more speed. The secondary lubrication provided by a .0002- and .0004-inch layer of CT-1 has avoided total destruction of expensive components such a blocks, rods and crankshafts. In 2004, NASCAR mandated a minimum main bearing size of two inches. Calico took action to develop a special two-inch bearing. The company not only manufactures, but coats the two-inch bearing.