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I currently have a 97 F-150 Lariat 4x4 w/ the 5.4L with 200,900mi on her. I was wondering if it were possible to swap the 2 valve 5.4 with the new 3 valve 5.4? Any other info would be great!!
should be able to. be sure you get the proper computer to match the 3 valve an tranny type you have. otherwise it should just bolt in place. the wiring harness and some accessories may also be different. so get as much of a complete setup as you can just incase.