Review on Derale 19118 Performance Stainless Standard by Joseph Marshall

NO, fan blades are NOT bent or flattened like other fans do. The blades are ribbed. They are not designed to deliver more air than OEM fans. They are designed for a higher speed. 8k rpm My application looks like this. Hot Cam 351 Cleveland motor, I replaced it with a smaller pulley. Double the speed of the water pump as well as the speed of the fan. It was too fast for OEM blades. So I needed a high speed fan like this. Works perfectly. As expected. They are not designed to solve the overheating problem. I replaced the pulleys to increase water flow to solve this problem. Which also worked great. I have a 450hp Cleveland that ends up running at 150 degrees. But it's not the fan.