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Message: <blockquote data-quote="Jrgunn5150" data-source="post: 666947" data-attributes="member: 9682">Navigator engine is pretty challenging...The first thing is, physically, it's absolutly huge. It barely fit's in the engine compartment.Second, exhaust, not terribly hard, but you're going to be out about 200 bucks for some fab work there.Third, as stated, the intake. You can do Aussie part's for an N/A intake with no adapter's, but you're going to be out over 1k before you even get it here, then the TB is on the wrong side of the car. OR you can do adapter plates and runn a 99-Cobra/Mach intake... Pricey.Basically, it comes down to money's. The 5.4 4v swap is neither cheap nor easy. The 5.4 2v swap, somewhat easier and cheaper. Either way, I expect you to be into it for 2-3k before you're done, not including cost of the engine.But it can be done, it's just going to tnickel and dime you to death.</blockquote>