Do you have a 500+ HP Big Block Chevy? Upgrade it to a Victory HD 8-rib serpentine pulley system with a heavy-duty tensioner and an additional idler for more belt wrap throughout the rev range. The 8-rib design provides 33% more surface area than a 6-rib design, offering improved grip across the entire rev range. Whether you have a high-revving 500HP 509 or a monster ZZ632 rated at 1004 horsepower, Concept One's 8-rib accessory drive system provides essential cooling and charging upgrades, along with excellent steering feel and feedback -- plus -- cooler AC. The compact mid-mount design, combined with a remote-mount power steering reservoir, improves chassis clearance. CNC-machined 6061-T6 aluminum brackets, pulleys, and pulley covers are included along with an Edelbrock aluminum water pump, Powermaster 165 amp CS130D alternator, and a Lares Type 2 power steering pump. A compact SD7-style AC compressor and billet AC manifold are also included. A high-capacity billet, remote power steering reservoir completes the design. Available fully polished, machined, or hybrid black anodized/natural finish shown. Victory HD is a complete, bolt-on system. All components are included to ensure proper belt alignment. Fits all big block Chevy engines, including 9.800" and tall deck 10.200" and 11.625" blocks.