After the M.O.R.E. perch was ground out to fit on the 41⁄8-inch-diameter casting it was on to the next step. A lot of people are afraid of welding to cast iron, and rightly so. However, if you know what you are doing and have the correct equipment, it can be done safely and securely. The first step is to slowly pre-heat the area to be welded. Cox then welded on the perch with an arc welder and Ni-Rod 99 welding rod. The preheating prevents the casting from cracking and the Ni-Rod is intended specifically for welding to cast iron.