5.4 - 4.6: How do you tell difference?
 

How can I tell the difference between the 5.4 and the 4.6 engine ? Are there numbers somewhere on the engine ? Thanks, I had a dream last night I had the wrong engine and just have to know for sure !!!

you can look at the diff too, the larger is only avail with the 5.4.

But if you were having a nightmare, i can see why you would want to check it out!

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Bambino Online
Owners Gallery Truck #179
1999 reg cab/short box/ORP - 3.55; 4.6l 5sp; factory snapless tonneau; twin 6" kicker sub tubes; Custom Exhaust; Mobil 1 5w30/Motorcraft FL820-S

I will try an help you barngoddess.
Now tell me, in this dream were you shifting gears and working a clutch? If so, then that would be a 4.6 as the 5.4 only comes with an Auto. Of course, it you dreamed you were driving an Auto then it may have been either so let's move on. Many people don't know this but, there is a Fifty Dollar Bill taped to the back of the 5.4L. (that is the end opposite of where the fan is) All you have to do is reach back there and get it. If it's there you may have a 5.4L or it may mean that your truck was built by an unscrupulous assembly plant worker so let's move on.

I'm sorry your hour is up. Please see the secretary on your way out to schedule your next appointment.

Mine has a big red "5.4" on a plastic cover over the engine. I guess that doesn't actually mean that it is one.

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1998 F-150 SC 4X4, 5.4, ORP, Red clearcoat, K&N, Chrome push guard, roll bar & tube side steps, Smoke bug guard and tail light covers, Black bed mat & Ford mud flaps.
http://albums.photopoint.com/j/View?u=930933&a=6802173&p=22853687

LMMFAO@Raoul!!


You know, this might be something for the boys that investigated the radiator thing to look into......
What if there was some sort of conspiracy to substitute the 4.6 in place of the 5.4????
Assy line runs out of 5.4's... Supervisor says screw it! Put in 4.6's and take some 5.4 labels and stick them on there, they will nevere know the difference!
MWAHAHAHAHHAHAHA....

BWHAHAHAHAHAHAHAHA.....

<Supervisor looking around with evil gleam in his eye...>

There is a decal under the hood that shows emission data and hose location. There is a sticker one the driver's side valve cover.

I laughed real loud....Very Good...Typical head shrinker

Hey Raul I heard you say that same exact phrase on another post????

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2001 F-150 5.4L trition,
Regular cab with 8' bed
XLT with Black Clearcoat
4x4 3.55 limited slip
factory cab steps
class III tow package
Factory ordered: 12/5
recieved: 2/22

Current Mods: Ford Plastic bedliner, Bug Deflector II

barngoddess,

What year is your truck? 1997-98-99 look for spark plug wires. If you see them you have a 4.6. You could check the 8 didgit of the VIN "L" should mean you have a 5.4.

Regards

Jean Marc Chartier

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00 F-150 XLT SC Flairside 4x4 4.6 w/5spd 3.55LSD
Warn XD9000i, skid plates, Draw tite class III,
Rancho RSX Reflex shocks, MAC 8.8 Axle Girdle
BFG 285/75 R16 MTs,
Borla Cat Back, Headman Headers,
Custom air intake system with modified
air box, Ported Throttle body,
Shortened MAF sensor tower,
K&N air filter,
Superchips :)
http://www3.sympatico.ca/jmc.chartier/splash1.jpg

Well...yeah, Dave on March 7th. That's when you probably read it.

I really try to never use the same words twice except for;
the,or,and,but,please,thanks!

(Wouldn't feel right charging the patient, otherwise)

I remember chuckling when I first read it Raul lol

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2001 F-150 5.4L trition,
Regular cab with 8' bed
XLT with Black Clearcoat
4x4 3.55 limited slip
factory cab steps
class III tow package
Factory ordered: 12/5
recieved: 2/22

Current Mods: Ford Plastic bedliner, Bug Deflector II

mash the gas to the floor while in go gear and see what happens. if it lights the tires up then it has the 5.4l...........if it just sits there and says "what?" then it has the 4.6l......

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1998 xlt off road 5.4lsupercab auto pacific green clearcoat power drivers seat, keyless remote with factory alarm, tow package

2001 yamaha 660r raptor 4 wheeler

http://a1060.g.akamai.net/f/1060/597...a/fec375d8.jpg

Otter, are you implying that a 4.6l can't light the tires up?
Bone stock 4.6l auto and I never have a problem laying some stripes (two with the ls rear).==========

[This message has been edited by whitestx (edited 03-22-2001).]

Otterbob
I am sorry to say this, but so for there is two 5.4 4x4's under this somewhat stock 4.6's belt. But i guess that is a common thought that just because your engine is bigger you are faster.Anyways Just on here to provide some laughs.

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[This message has been edited by Aggie04 (edited 03-22-2001).]

I dont know otterbob.....

15 minutes ago I roasted first gear, and burned right though second till i hit a stop sign. Lets see your 5.4 slushboxes do that!!!! HAHAHAHAH

Nice Raptor though...

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1999 F150 4x4 XLT BLACK ORP 4.6 5 SPEED 3.55
LUND HOOD SHEILD
K&N
RAVIN Z-33 SI/DO
CAPTAIN CHAIRS
PIONEER 6815's
SUPERCHIP
AIRBOX MOD
WAAG BRUSH GUARD
SPIRALMAX
KENWOOD 9015
SUPERCHIP STICKERS
MTX THUNDERFORM
KICKER 240 AMP
PIAA 9007'S
LUND RACERBACK
LUND LUNAR VISOR
NO DOOR CRACKS!!!

Hey aggie you said you beat to 5.4L 4x4s. I take it you have 4x2 so less weight. Bigger is better aggie. The 4.6L is a great engine. Test drove one before I test drove 5.4L. I felt a big difference in power in 5.4L not to say the 4.6L isn't powerful. Remember there is no replacement for displacement. Oh yeah do you have 5 speed?

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2001 F-150 5.4L trition,
Regular cab with 8' bed
XLT with Black Clearcoat
4x4 3.55 limited slip
factory cab steps
class III tow package
Factory ordered: 12/5
recieved: 2/22

Current Mods: Ford Plastic bedliner, Bug Deflector II

Oppps...wrong tread... I am looking for advance mental disorders..you know, like dreaming that Ford is building the trucks with Toyota engines.

But anyway, mine is a 5.4 and I am very happy for that.

Who gives a rats a$$ whos truck is faster, the 4.6 or the 5.4. Who cares? But you with the 4.6 that said you out ran the 5.4 4X4, why don't you grab a chain?

(Typical AGGIE) GO LONGHORNS!!!!

I drove both before I bought. I step on the gas to make me smile as the gas needle moves to the left. Love my 5.4.

I also had a dream. I dreamed that I have the correct radiator and guess what. This dream may come true. In a 2001 Silverado.

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2000 F-150, XLT, SC, 5.4, 4X4, 355 LS, ORP, Black/Silver, class III, single CD, sliding glass, med. gray, keyless, elect. shift, engine date 8-18-99, Superchip. '93 Harley Fatboy Black & tons of chrome

The 4.6L engine has an aluminum upper intake manifold. The 5.4L engine has a plastic intake. Also, there should be a sticker on the driver's side valve cover that has the engine serial number, type and displacement - 54 or 46. You might need a flashlight to read it. Good luck.

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Robert T. Kraus
PTSE Resident Engineer
Kansas City Assembly Plant, P225 PVT Office
8121 N.E. Highway 69, Claycomo, MO 64119
Tel: 816 459-2044 Fax: 816 459-1726

Holy cow, Robert!

Posting a sig like that in here and you're going to get more mail than Santa Kraus! https://www.f150online.com/f150board/biggrin.gif

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1999 Ford F150 Lariat RegCab shortbed 5.4L 3.55LS Towpkg Line-X
15.714@85.21

Thanks

4.6 or 5.4
 

Anyone know of a good hand cleaner? I've got grease really embedded in my hands from looking for that $50 bill..

> "If so, then that would be a 4.6 as the 5.4 only comes with an Auto."

Gasp!! I didn't know that! I have Calif 5.4 Auto 4x4. I'd "kill" for a stick. I'd even take the 280... er, 4.6! Even more, for a 7700.

The manual trans couldn't handle the torque of a 5.4.