5.4 ?????

atrainsgt · Jan 17, 2008

How low of mileage should I shoot for? I Found a 5.4L 2v out of a 2000 expedition with 111,000 miles for $1100. I got another question. I know with the adapter plates I can use my PI intake but my question is what size TB needs to go on this? a 75mm? Or are you all using the stock TB and plenum?

Jrgunn5150 · Jan 17, 2008

It's kind of up to you dude, but i like to do thing's once. Why put in a 11k engine, then pull it out in a year because it need's new ring's you know? Some people don't mind though.

atrainsgt · Jan 17, 2008

Well for $1100 I could replace some things. It seems that it would be cheaper to buy 1 with some miles and replace some parts. What would you all suggest replacing/upgrading? Even with 111,000 miles I doubt it will need anything anytime soon. My car has 160,000 miles and its still going strong, runs better than new with some mods.

Jrgunn5150 · Jan 17, 2008

Me personally. i would find one as cheap as possible, not running, good crank, no window in the block. I would then get some decent forged piston's, and rod's, along with new bearings and an oil pump, have the block honed +.010, throw it together and know that I'm good for 150k+.

As for updated part's, The heads, even pi, are a mojor chokepoint for modular motor's, so I would spend my money there.

atrainsgt · Jan 17, 2008

Thats getting a little expensive for now but later on that would be a worth while investment. At this point I would be happy to get a good 20-30k out of the engine and I doubt that will be a problem. I'm not going to take it out and beat it to hell. Coming from around 240rwhp I'm sure it will be enjoyable for a while. Still got that question about the TB and Plenum though.

Jrgunn5150 · Jan 17, 2008

It's like this dude, you don't HAVE to do anything. You would see a gain with the plenum and TB, but most will come from heads and exhaust anyway.

voidfinger · Jan 17, 2008

red said he picked up alot with a plenum and t/b... the motors require more air and shows more gain than the 4.6 Still not like 15rwhp or nothing "i don't think" but still nice.

myillwillinc · Jan 17, 2008

my first 5.4 was a 98 f150 nonPI motor with 80k miles on it and minimal mods. it was insane on the torque and could pull slightly on a 99 cobra with similar mods.

Jrgunn5150 · Jan 17, 2008

myillwillinc said:
my first 5.4 was a 98 f150 nonPI motor with 80k miles on it and minimal mods. it was insane on the torque and could pull slightly on a 99 cobra with similar mods.

uttahere:

jfor441 · Jan 17, 2008

Ya'll are making me want to ditch my built 4.6 shortblock and put a 5.4 in instead.

josh0092002 · Jan 18, 2008

ok once again ive over looked something, lol. are all lightening motors 4v or 2v? if they are 2v what makes them different from the regular 5.4 2v. someone help ive confussed myself again :uglystupid2:

Jrgunn5150 · Jan 18, 2008

josh0092002 said:
ok once again ive over looked something, lol. are all lightening motors 4v or 2v? if they are 2v what makes them different from the regular 5.4 2v. someone help ive confussed myself again :uglystupid2:

They are 2v, what makes them different is the spinny whistling thingy they put on instead of a normal intake. And about 100 hp.

atrainsgt · Jan 18, 2008

So the lightning intake and supercharger will fit this motor? The 2v 5.4L? I thought they were the same but I was not positive.

Jrgunn5150 · Jan 18, 2008

Yes, but you'll have to go old school with a hole in the hood.

atrainsgt · Jan 18, 2008

I wonder how far it would stick past the stock hood? I've wanting to go to a cowl hood but I don't want it to be ridiculous. Maybe a cowl hood with a scoop.

Jrgunn5150 · Jan 18, 2008

Won't clear a 5" cowl, hole in the hood only, the problem is in the front.

atrainsgt · Jan 18, 2008

Its hard to picture it without seeing it but if the supercharger only stuck past the stock hood 6" I could do a 5" cowl with a custom 2" tall scoop. Oh well I'll make it work.