Re: Superduty Engine Change
The 5.4 from the '02 should fit. Be sure to keep your bell housing as the F150 is probably different so the transmission can align up correctly. To my knowledge, the engine mounts are the same but I'd check a repair/service manual to double check, if available. If your truck is an automatic it makes it easier but the PCM will still need to be programmed. You'll have to use the PCM from the F150 as it was meant to run that particular engine, you won't be able to use your current computer to run the '02 engine. Also be sure to take the wiring harness.
Personally, I'd save myself the hassle and get a rebuilt engine for another $1000-1500 from Jasper Engines - WITH a warranty.
'11 Ram Quad Cab 4x4 SXT 5.7L HEMI (stock); 48,500m
'06 Pontiac G6 GT 3.5L 220hp; 64,000m
'12 Chrysler 200 Limited 3.6L 283hp; 28,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!