I just finished a 4 core big block radiator and windstar fan swap. I'm loving it. I had a flex fan and about 1/8th of a fan shroud before. In traffic with the summer heat of Yuma, forget it. The temp would climb like it was nothing. But know, I went and did some wheeling on sunday. It never went above 200. With the big radiator, there is about an inch and a half on the bottom the fan doesn't cover. But other than that It looks almost factory. I can post some pics if you'd like.