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hi guys, im new to the forum and whant to say is awesome, i have a few questions: i have a 99 expedition 2wd and its time for a new engine, i have access to a complete 99 lightning engine and a 02 harley engine, is there any specific year i need or any 99-04 lightning will work, both engines come complete with accesories, wiring harness, computer, is there anything else i ll need? thanks for any help
The problem is with the heads on the 99-02 5.4, but the L's and HD's seem to experience it more because of the blower application...boost. The heads on the 99-02 only have 4 threads and Ford installed 8 thread heads on the 03-04 models.
so besides the heads everything else is the same from 99-04? and the problem with the spark plugs, is it mostly modified motors or stock motors also? thanks