The Small Block Chrysler Ultra Serpentine Conversion Kit w/ A/C from March Performance delivers modern reliability and style for your 318, 340, or 360 Mopar engine. This 6 rib serpentine system replaces outdated V-belts to prevent slipping and improve performance, while a compact bracket design neatly mounts the alternator, A/C, and power steering. Precision CNC-machined from 6061-T6 billet aluminum and finished in clear or black powder coat, it offers lasting strength and a maintenance-free shine. Clean looks, dependable drive—built the March Performance way.