Ford has some very nice 5 blade 16 and 17" fans.... Came on some of the Mustangs and a lot of pickups before the days of those worthless clutch fans.... As Dave mentioned, stay away from the cheapo flex fans, saw one of them come apart and pieces of it stick in the guy's arm who was hanging over the fender setting the timing!!!! The good factory ones are usually easy to find at your favorite (older) wrecking yard, paid $5.00 for the one on my pickup....!!!!