If your fan is not as close to the back of the radiator as you wish it can be cured. They make a fan spacer in different lengths that you put between the fan and pully. Where the fan sits in relationship to a shroud is as important as the fans distance to the radiator without a shroud. The spacers arn't expensive. You might put one on to space the fan correctly without the shroud to test if a shroud in even needed.
