BUILD UP IDEA-COMMENTS PLEASE

[PICKUP6772]

O.K. guys. I've been thinking about this for a while, as I've started getting the dreaded "5 liter knock" upon start up. I'm looking to do the following: 99-01 explorer engine, with a better cam for stronger lower to mid-range torque. Mustang shorty headers, and "H" pipe, Walker Dynomax mufflers, and 94-96 Impala tailpipes. I already have a 92 muatang HO trans in the car, so no worries there. As for the rear, I was originally thinking a "K" code 3.55, but think I might go with a 3.27 instead, to keep the highway mileage up, and still have the off the line grunt. I currently have the standard 2.73 open rear. Of course, I would need a Mark VII computer, and have my EGR, and throttle body bored out, to at least 65MM. The last part actually being easy, as I would get those from a wrecker, and send them out to be bored, and put them away for future use. Well, let's hear what you have to say. I almost forgot about the in-tank fuel pump. What would be the best one to use?
Thanks, Mike

[PICKUP6772]

Anybody??

[85crownHPP]

Carter is a USA made pump, and are supposed to be pretty good.

[mrltd]

These cars run for 200K+ miles with the "5 liter knock"

[RunUoveR]

if you get an explorer motor from those years you need the gt40P specific herders which i imagine are atleast a few dollars more then your common fox body shorties

just something to keep in mind...

[mrltd]

woah, "stronger cam for more mid-low range tq" LMFAO. You will not get a better cam for that than the stock explorer cam.

[LtMercDaddy]

Might want a HO wiring harness, to go with the ECM.

gonna need the internal EGR style heads and intake if you wish to remain smog legal.

if emissions is not a problem I wouldnt bother with the boring of the lopo and hoping to not have a vacuum leak.

Your factory intakes will work with the motor but I wouldnt recommend using the factory upper. id atleast go HO if the explorer's wasnt avalible.

and then theres always CARB. but you had a Mark ecm.

oh almost forgot.

you need a threaded adapter for the oil filter. the explorers use a elbow adapter.

[PICKUP6772]

LtMercDaddy, I don't know about MARYland being emissions hell. Apparently, you've never been to lower NY. Our emission standards, if I'm not mistaken, almost mirror california's. Mike (mrltd), this is why I posted this, as I'm more familiar with chevys. Until my wife bought the 89 CV about 10yrs ago, I would have never touched a ford product. Blame that on a few electrical fires I've had with fords. RunUoveR, I was unaware of the GT40p specific headers, thanks. LtMercDaddy, I will be able to use my current harness, with the MARK VII ecm, along with the rest of the switches, and sensors. Which I will have to do, if I expect to remain emissions legal. So carb'd is definitely out of the question. And I definitely want the explorer intakes, along with the modded TB, and spacer. Mike, back to you, what's your opinion on my rear gear selection, as I do mostly highway driving. LtMercDaddy, check out mrltd's post on HO conversions. This is where I'm starting, to get an idea as to where I'm going, and going from there.
MIKE

[gabegt90]

These cars run for 200K+ miles with the "5 liter knock"

x1 to that

[Lincolnmania]

complete engine from a 96 or 97 explorer......make sure it has internal egr......change the valve springs, swap the oil pan and pickup, and the timing cover and harmonic balancer and water pump. change the timing chain and gears also the explorers were single roller...... you will need an oil filter adaptor for the block from ford also
the explorer engine has a 65mm throttle body.......you will need to locate a 93-95 ford lightning egr spacer or modify a mustang 65mm spacer to work

[mrltd]

3.55 is fine, with a stock explorer motor you could probably go 3.27. I've always run 3.73's and do fine on the highway, pulling 19-20mpg in the wagon without ac on. Mind you I have an aftermarket cam and some different tuning.

[PICKUP6772]

Scott, thanks for your input. I didn't realize that an adapter would be need for the oil filter, though. What's the deal with that? Is it the type of filter, or the direction it mounts? Mike, I'm getting mid to upper 20's without the A/C, low 20's with the A/C, and would like gto keep it in that range, if not improve it some. LtMercDaddy, here's the results from my last inspection. I don't know what Maryland requires, but as you can see, NY is pretty tight on theirs.

[mrltd]

If you want to keep that milage keep it stock.

As for the oil filter adapter-try searching for explorer swap. I wrote up the required parts for the swap. The explorer motor uses an oil cooler and a different filter- that won't fit on the panther.

[PICKUP6772]

WTH?!?!?!?!?!? Jeez MIke!!!! You just completely freaked me out with the name change. What gives?

[LtMercDaddy]

I'll have to dig my recent emissions test out the glove box and compare. I'm actually getting ready to switch my current registration over to a historic one. By doing so I'll be exempt of emissions testing provided I only use the vehicle for limited purposes.

since you have to retain your emissions numbers you need to use the heads and intake fitted for internal EGR. the intakes and heads have a passage located in the middle of the runners.

If you didnt need to retain your emissions legalness you wouldnt need to worry about the intakes or heads. I believe all HO and LOPO intakes have internal EGR. Could have used a different EGR spacer aswell.

(note)

some intakes do not have the IAT tapped.