I have a 1999 navigator with the 5.4 engine. It's 265 hp. My friend had the same 5'4 in his Expedition and also owned a 5.4 with the 3 valve cylinder heads in a F-150 and the 5.4 two valve in the Expedition was far stronger than the 3 valve F-150. My navigator runs very strong. Pulls a large V nose snowmobile trailer very well. Have also hauled car hauler with race car and tractor on it very well. So I really don't buy your information here because I have the vehicle in the driveway.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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