Well as some of you know I bought a 2001 Navigator to swap its drivetrain into my 99 F-150. Long story short I might go a different route after I got a stupid idea. I'm looking up forged internals and rebuilds and this and that to make my truck reliable, and I was looking at 5-6k for something decent. Or I could leave the engine stock, but no one does that. Not after all this work I would be doing, I want something decent.

So! That made me get the horrible yet great idea of swapping in a new low mile take out 6.2L from a superduty or raptor. Then slapping on my 4R100 from the Navigator after throwing a performance valvebody in it. The engines are selling used probably around 4 grand for an engine under 10k miles and I won't have to bother rebuilding anything. Nevermind have a warranty with the engine.

That being said what are everyone's thoughts? Does anyone know what kind of road blocks I'll run into? Any info on doing a swap like this would be very helpful. I know the trans will bolt up, and the engine mounts I think will too. I'm a little worried about the tuning aspect of it though and possibly wiring.

Thoughts?

 

Sounds expensive fella. Although original for sure. Pretty different language they talk. I could justify putting a 6.2 in an old F100 or summit.

If you dare. Go on Lightningrodder and see some of the 4v conversions that just bolt in. Better option in the long run.

You could throw a 3v in there.

 

Bell housing motor mount locations are the same. You just need to figure out engine management.

 

Computer controls are the biggest hassle. Find a 4v Navigator 5.4 and a 4R75 transmission instead. easy peasy

 

Used 6.2's go for 3-4k complete, shouldn't be too bad. And a 3v would be very difficult, those are a very different language than the 2v and 4v engines.

Read the original post, I own a 01 Navigator with a 5.4 DOHC and 4R100 I was using as a donor vehicle haha. Then I got to thinking 6.2 after jumping the gun and already owning the Navi.


I did do more research and although I think the swap is very possible, the 6.2 power numbers SUCK. An old non PI 5.4 makes twice the tq at 2k RPM than a 6.2. It will rip up high sure, but this is no lightning, I need bottom end for towing. Long live the 5.4.

That being said I'm still considering it haha.

 

It would be really awesome. I'd imagine you'd get maybe 1-2mpg more than current 12-13th gen trucks because 10th gens are much lighter (my truck came in at 3,800lbs last time I weighed her), I think the single cab short bed is over 4,200 for a 2012

 

It'll fit easy. Hell, the V10 fits, so that sure will.

Good Luck getting it to run tho.. Give up a now and you'll be further ahead.

 

I think for the kool factor it would be bad a$$!!! If she doesn't have the numbers you like just supercharge/turbo the engine.

Your right the numbers are lack luster. 411/434. Vs 260/350. You would expect a little more out of something this new in design. Kind of reminds me of the gutless v10 ford used.

What about one of the new 4v 5.0?? In the end only you can decided whats best. Still cool to have a 6.2 in the 99.

 

The 6.2 has a much flatter torque curve, but you'd be crazy to think it even compares to a 2V 5.4. A 3 or 4V 5.4 maybe, but the 6.2 spanks the 2V across the board, even in the low end. Percent of max torque is lower on the low end, but raw numbers are much higher.

What have you been looking at?

 

You could bolt in the 6.2, but I think you'd need a different transmission controller to use your 4R100. If you're looking to tow, the V10 swap is cheap and pretty much everything is laid out for you in my swap thread. Either way, you better love to do wiring.

 

If you could get a donor truck that runs you'd have everything you need. Its all the little things, brackets, hoses, and all that take the longest to track down and can get tedious.

I'd jump all over it if i had the time and money.

 

I just googled 6.2L Dyno. Maybe I'm not taking enough into account as far as the HP at the lower RPM. But my old 98 non PI 5.4 was a monster, peak tq at 2000 rpm 330 flt bone stock. The 6.2 looks to be under 200 ft at 2k rpm.

I do admit I have not driven a 6.2 truck I am going based only on numbers. I'm going to talk to a local performance shop this weekend to see how much a fully forged DOHC 5.4 will cost to build up since I already have it. If I go this route I'll be running around 9:1 NA for now and adding probably a GT500 blower down the road.

 

Eh it won't be that bad. Id run it on OBD2, lock the cams and run a computer already set up for the 4r100.

I would throw a DOHC 5.4 in long before the new 5.0. The Navi engine is much easier to swap in and it's tried and true, plus I already own it haha. So it's 6.2 or 5.4 DOHC.


3800? That seems light. My old girl was 5100 lbs or so last time I had her weighed. Granted that's a 4x4, extended cab, off road package truck.

 

[QUOTE=1998f150xlt;5061152]Eh it won't be that bad. Id run it on OBD2, lock the cams and run a computer already set up for the 4r100.

I would throw a DOHC 5.4 in long before the new 5.0. The Navi engine is much easier to swap in and it's tried and true, plus I already own it haha. So it's 6.2 or 5.4 DOHC.


Wow. Please keep us updated with your work then... I have to see this after these comments..

Don't forget.


Hell, I'd take a new Coyote over any of those above, - but that's me.

 

IIRC the 6.2 is a 2v without an of the cam phasers. Its just a plain old mod motor, just on steroids. Only big difference is the 6.2 has waste spark ignition system.