1998 GT 351w(5.4) Lightning engine swap

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12-28-2008, 03:14 PM

#21

amoosenamedhank

5th Gear Member

Join Date: Nov 2005

Location: MN

Posts: 4,412

Quote:

Originally Posted by SaleenSN95

its just i heard from a friend that the 5.4 are a low rpm motors specifically for trucks. and if i get a 5.4 from a f-series truck, should i get the computer with it or will the 4.6 computer and harness work. also what kind of intake should i use?

Like you mentioned, a 5.4 2v on a stock short block really isn't meant to be spun all that fast. I wouldn't even bother if you're not going to at least do cams with the swap.

As far as intakes go, you can buy adapter plates and run any 4.6 manifold or there is a new HPS 5.4 2v intake out as well.

Your 4.6 EEC will work fine with a tune.

12-29-2008, 12:58 PM

#22

SaleenSN95

Thread Starter

Join Date: Dec 2008

Location: Wisconsin

Posts: 23

i know it will work fine i just WANT MORE POWER!!!LOL i suppose i could supercharge or turbo it, of course beefing up the internals first. it looks like u have a 5.4 in ur stang. where did u get it out of and how much horsepower does it have? and r u happy u did the swap?