V8 Engine Swap

[ric232]

Can a new small block GM engine (e.g. 5300 or LS2) be easily mated up to the Ford transmission in my 1999 5.0L Mountaineer? How about the latest 4.6L 3V modular Ford engine?

Thanks.

 

[Turdle]

No

 

[vroomzoomboom]

Chevy!!

 

[wrigley_1285]

why would anybody want to put a GM motor in a perfectly good ford

 

[Dan Whitaker]

Can a new small block GM engine (e.g. 5300 or LS2) be easily mated up to the Ford transmission in my 1999 5.0L Mountaineer? How about the latest 4.6L 3V modular Ford engine?

Thanks.

Dude. You had better put your flame suit on because you are going to need it.

 

[wood1]

smash smash smash smash!!!!

(banging of face on keyboard)

I don't understand!!!!

 

[Silver X]

What problems are you having with the 5.0L that you think a GM engine will solve cheaper or easier?

I see this same debate on Mustang boards all the time. The person just does a LSX swap to "be different", but spends tons more than ever expected and still isn't any faster than a decently built 5.0L.

 

[ric232]

Fine, forget the GM motor. How about a 4.6L 3V?

 

[Dan Whitaker]

No a 4.6 will not fit. The engine bay is not wide enough. A 5.0 can built to the hilt.

 

[wood1]

This should give you an idea regarding the wiring...

http://fordfuelinjection.com/index.php?p=88

As far as the transmissions, the 5.0 and 4.6 have different bolt patterns.

Why do you want to get rid of your 5.0?

There are alot of 5.0 guys here that can help you generate some very good power with your 5.0...

 

[jah81592]

The processor and connectors for the 3V (Spanish Oak,Silver Oak,etc) motor is completely different than the EEC-v in your truck. The shape & size,everything. So initially you would have to find a place to mount the processor and run the wiring necessary. Physically I am not sure whether the 3V will even fit in your application. At the bare minimum I believe that a major heater box mod would be necessary and/or elimination of the box may be mandatory. All 3V engines are drive by wire throttle so the pedal assembly would have to be installed as well. I have pondered this swap as well. Fitment has been the main issue. I would like to see one set in the frame to settle my curiosity. Actually I initially pondered a 5.4L 4V engine swap (which by no way in hell will fit, then I thought of the 3V engine swap (5.4L as well) which should be a little more compact. Either way from my measurements the engine won't fit. 4.6L's may be a little better but I don't believe much. Any takers???? I would love to see this completed.-j:

 

[ric232]

Why do you want to get rid of your 5.0?

Primarily because I'm tired of hearing it ping all winter every year.

 

[Dan Whitaker]

Primarily because I'm tired of hearing it ping all winter every year.

Did it ever occur to you to try a higher octane fuel or octane booster to see if it stopped or figure out what the problem might be?

 

[ric232]

Did it ever occur to you to try a higher octane fuel or octane booster to see if it stopped or figure out what the problem might be?

Yes, higher octane fuel stops it. But it's not supposed to need higher octane fuel. That's what's frustrating. I've changed the EGR valve, DPFE sensor, cleaned the MAF, cleaned the IAC valve, Sea-Foamed it to death, etc. etc. It has done this since before it had 10,000 miles. Now it has 96,000. I suppose if I paid somebody to pull the heads and clean the combustion chambers that I might get another 8,000 ping-free miles out of it. Doesn't seem like money well spent to me.

 

[Turdle]

Yes, higher octane fuel stops it. But it's not supposed to need higher octane fuel. That's what's frustrating. I've changed the EGR valve, DPFE sensor, cleaned the MAF, cleaned the IAC valve, Sea-Foamed it to death, etc. etc. It has done this since before it had 10,000 miles. Now it has 96,000. I suppose if I paid somebody to pull the heads and clean the combustion chambers that I might get another 8,000 ping-free miles out of it. Doesn't seem like money well spent to me.

The camshaft position sensor controls fuel injector timing-and has been known to fail,or at the least be very dirty-

The crank pulley, which can slip where it is pressed together, controls ignition timing.
While the pulley and timing marks may fire and appear to be at the correct time with a timing light-it might be shifted in the keyway area-
My original crank pulley was-end beleive it or not, there was a recent "will not start" thread which ended with a broken keyway area-causing ignition timing to shift dramatically-
Just an idea or two to play with.

 

[chriswells78]

The camshaft position sensor controls fuel injector timing-and has been known to fail,or at the least be very dirty-

The crank pulley, which can slip where it is pressed together, controls ignition timing.
While the pulley and timing marks may fire and appear to be at the correct time with a timing light-it might be shifted in the keyway area-
My original crank pulley was-end beleive it or not, there was a recent "will not start" thread which ended with a broken keyway area-causing ignition timing to shift dramatically-
Just an idea or two to play with.

precisely what I was thining.

All 4.6's are too wide for this applicaton with out major mods to your heater box like james said. Also, your headers would need to be custom made and that is not cheap or easy either. All this on top of wiring, plumbing and tuning and fabbing. Even sticking a LSx (XXcough boat anchorXX) into your truck would cause you to have the same issues and probably cost you in the neighborhood of 8-10k to have it done, 3-7k to do it yourself. Personally if you want a chubby that bad, just go buy one.

 

[ric232]

The camshaft position sensor controls fuel injector timing-and has been known to fail,or at the least be very dirty-

The crank pulley, which can slip where it is pressed together, controls ignition timing.
While the pulley and timing marks may fire and appear to be at the correct time with a timing light-it might be shifted in the keyway area-
My original crank pulley was-end beleive it or not, there was a recent "will not start" thread which ended with a broken keyway area-causing ignition timing to shift dramatically-
Just an idea or two to play with.

I appreciate the insight, but I'm skeptical that these things would have occurred prior to 10,000 miles. Anyway, I wouldn't know where to start to check on these items.

 

[wood1]

You have less than 10,000 miles on your Mountineer and it pings?

You should have the codes read to see if there is anything stored and we can help you from there.

There is no reason you shouldn't have a nicely working vehicle, the 5.0 is a very stout engine. Many have built 300+ HP without any power adders (turbo, supercharger).

When does it ping? Only on hills... hot days... etc etc?

 

[Turdle]

Are you sure the "ping under load" you hear isn't actually an exhaust leak?

 

[ric232]

No, it has 96,000 and it has pinged (mainly in the winter) since before 10,000 miles. Ford always said nothing was wrong and that I should try a different brand of gas. It pings when cruising at highway speeds. No, it is not an exhaust leak.