March Performance Ultra Series Chevy Small Block Serpentine Kits

March Performance Ultra Series Chevy Small Block serpentine systems bolt to the front of 1969 or later small block Chevy heads. Precision CNC-machined from solid billet 6061-T6 aluminum to fit perfectly and handle high torque and vibration, these bracket kits come complete with stainless steel tensioning rods and chrome moly rod ends for high performance operation. All necessary hardware included. Powdercoated to eliminate polishing in those hard to reach places. Matching serpentine pulleys are precision CNC-machined from 6061-T6 aluminum. This is the same material March uses for NASCAR pulleys! These pulleys will not fracture like common cast pulleys. High tensile strength means much longer wear. March hard coats the high-wear areas on the high-water flow ratio pulleys! The street rod ratio increase water flow and fan speed. This helps at critical low speed driving. Show Less