Derale High Performance Flex Fan 17 Inch Blue Blade Chrome Hub

Derale 19517 This 17" high performance, standard rotation flex fan features 6 blue anodized aluminum blades and a polished and chrome plated hub and is rated for engine speeds up to 8,000 rpm. A perfect solution for applications where space is at a premium such as hot rods, street rods and many muscle cars.
Features: Blue anodized aluminum fan blades. Chrome plated hub. Rated up to 8,000 RPM. 17" standard rotation flex fan design.
Specifications: Diameter: 17", Flange bolt spacing: 1-3/4' - 2-1/4", Depth: 1-1/8", Mounting surface to front: 1/4", Mounting surface to rear: 7/8", Blade pitch: 50, Rotation: Standard (clockwise), Hub construction: Chrome plated steel, Blade construction: Anodized blue aluminum.