This listing includes 1xAluminum Shroud, 16'' Cooling Electric Fan, 1 x Thermostat Relay Kit Maximum Fan CFM: 2150 cfm, Maximum Fan RPM: 2,250 rpm Radiator Shroud Fans Kit Compatible with Chevy Bel Air/Nomad/Del Ray V8 Engine 1955 1956 1957 Full Aircraft 5057 aluminum shroud construction Shroud with precise design, form and function for an easy drop-in installation The ENGINKUHLER racing parts Shroud""uses great electric cooling fan(s) and is a very good value. We have created this packages using fans with a high torque motor, sealed ball bearings & balanced curved blades ensuring low noise levels and long life. This Cooling Shroud Package will compliment your cars cooling system, it will help in keeping your car or truck running cool and looking hot!