Never throw another belt again — the March Performance Deluxe Serpentine Conversion Kit for Chrysler Big Block 383–440 and 426 Hemi engines delivers the strength, precision, and performance your build deserves. Designed to replace outdated V-belt systems, this kit improves reliability and cooling efficiency with high water-flow ratio pulleys and stainless steel tensioning rods that ensure perfect belt alignment under all conditions. Each component is CNC-machined from 6061-T6 billet aluminum, the same material trusted in aerospace engineering, and finished in maintenance-free clear powder coat for a polished look that never fades. Whether you’re running a street machine or a show car, this American-made bracket and pulley system provides flawless operation, a cleaner engine bay, and the durability only March Performance can deliver.