These universal fit aluminum fan shroud kits can be built to fit many applications with a belt-driven fan. The adjustable collar will accommodate 15"-20" fan diameters. Measures 19-5/8" tall x 20-1/2" wide x 2-5/8" deep. Works well with Speedway 26" wide radiators Made for exact fit of many Muscle Car and Hotrod radiators. Allows the installer the choice of off center, side-to-side and above the radiator fan positioning. For crossflow or downflow radiator mounting. Includes fully-formed shroud of .063" lightweight aircraft aluminum. 3" trimmable collar. Adjustable collar; adjusts for 15-20" fan diameters. Includes all the necessary hardware and mounting instructions. Measures 19-5/8" tall x 20-1/2" wide x 2-5/8" deep. Learn more about the importance of using a fan and shroud with our radiators by reading our tech article. Radiator Cooling Performance.