I have a 93 f150 4x4. The 351w that is in the truck is on its last leg. And its the second one I put in it. So now I'm thinking about putting a 5.4 3v and a transmission and t-case to match it. I want to leave it efi and all that. Upgrades will come way later. I would like to know if anyone has done this before or can give me some info on how to do this. Thanks

 

you will need the complete electrical system for the 5.4 including the in cab wiring and instrument cluster

 

might do a search,there is a member on here that put a 4.6 into his truck,so a modular motor is possible,but not sure how much different it would be for you since you have a 4wd and the 5.4

 

im thinking about getting the whole truck instead of bying part by part so everything will be there. i belive that the 5.4 will fit cause my truck has the 5.8. but im gonna run everything thats on the 5.4. like the ac.

 

Thinking about selling your 93 with the dying 351?

 

When you think of fitting a 5.4 or any modular motor into anything, think like you are fitting a big block into what ever you are putting it in. The modular motors outsize the old small blocks "physically" by a lot.

But with that out of the way, if you did this your truck would be the coolest in your town if you did it. It would just be cool to say your 93 f-150 had a 5.4 in it.

and think.....ANYTHING IS POSSIBLE, you just need the time, effort and MONEY.

 

The one problem with those 3v engines I know of( if I'm thinking of the right engine) is that the spark plugs have a nasty habit of coming out and leaving the spark plug threads in the head.

 

selling it has crossed my mind but i had
the truck cents i was in the eighth grade. i really cant see me parting with it.... i also think it would be pretty darn cool to tell people about the 5.4 in my 93.... i had a buddy that his spark plug decided to exit the motor going down the road leaving the the threads behind. but it was in a 4.6. but the same thing can happen in a 5.4. so i've herd.

 

You're thinking of the 2v 5.4L. The 3v 5.4L is known for NOT being able to get the plugs out when needed.

Ford Modular engine - Wikipedia, the free encyclopedia

Check out the section titled "Spark plug issues".

Jason

 

That was the early tritans that would blow the plugs out going down the road. The newer 3v have a wierd plug design that breaks when you try to remove them. The plug and center piece comes out the threads that hold it in how ever don't. I haven't heard of the newer 3v blowing the plugs out though.

 

maybe i wont have that problem when i get a hold of a 5.4 3v. but i thank ya'll for all the info. if anyone else has anything else to add to this project i could sure use it.

 

I have a 4.6L Triton mounted in my '91 Bronco but have not hooked it up yet. You have to make motor mount plates for it, I have some pics somewhere of what mine look like, and I used Mustang motor mounts. The main problem you will have is clearing the intake manifold. I am using a car intake which is lower profile, but not sure if one can be adapted to the 5.4L or not. You may have to mod your firewall to clear it.

 

Remember the 3v engines are fly-by-wire. That means you'll have to rig up an electric throttle. I believe that they have a returnless fuel system that you'll have to deal with too. They have limited aftermarket support and practically nothing from your truck is going to work with that drivetrain. I guess that's what makes it such an interesting project.

Personally I'd go with a 2v motor. Yeah they're a little down on power but they have a like fuel system, an adaptable throttlebody, simpler engine controls, and you can find them a bit cheaper than a 3v. Most of the performance parts from Mustangs 4.6s will work also (there are even spacers to mate a 4.6 intake to 5.4s).

You can make the swap even easier by going with a manual trans and T-case. Look for SuperDuties for this, though the physical size of the trans, and especially the Tcase, maybe a hard fit in your truck.

Sense we're bench racing I'll throw a thought for the ultimate setup. Start with a Lightning/Harley engine and mix with ported TrickFlow heads, hot cams and a Whipple upgrade. Back this with the SuperDuty 6-speed and Tcase and drop it in your truck. Now add Boggers and go mudding. After the 700+ horse blows the hell out of your 8.8 and TTB swing a locked Dana 60/80 (or Sterling) combo under the rig, and bolt on no less than 40" rubber. Take a lot of pics along the way, post them on here every few weeks and set back and enjoy everybody saying how cool your truck is.