I can measure it when I get home...out of town for 4 more days. The mounting flanges push it towards the engine almost 1/2 inch. To get it to fit in my 440 dart I had to cut those flanges off and ghetto rig my own that pushed it back forward towards the grill flush with the radiator support. I got NO room. I'm clearing everything by like 1/8 inch....with some self clearancing of the fan blades. LOL