Fox Body 5.4 DOHC Swap

Skyler MacArt

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May 22, 2017
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I bought a 92 LX with a 4 cylinder in it. I want to put a 5.4 DOHC out of a navigator in it. I know just about everything I need to do to the chassis, end, and other supporting mods but I need a little help on what I should do computer wise, headers and also just any issue others have ran into doing a similar swap. My question about the computer is what should I run I'm planning to run 800-1000hp or more at some point. I heard the stock navigator PCM can't keep up with that fast of a car. I've heard you can upgrade to a 2001-2004 mach 1 PCM because they are faster. Also what tuner would you guys use to adjust the fuel. Or would this even work.
 

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