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what can i expect out of a 5.4L?

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Old 11-19-2007, 10:29 AM
  #1  
dtkikols
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Default what can i expect out of a 5.4L?

well im going to have the oppertunity to get a free 5.4L 2v engine. im wondering if its worth my time to bore it 0.030 over and go with somthing around 11:1 compression and put that in my car. since its a 2v i know itll be a easy swap. anyone got any idea what HP/TQ ill be looking at?
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Old 11-19-2007, 10:37 AM
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Sxynerd
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Default RE: what can i expect out of a 5.4L?

A lot of Tq and bad gas milage... You should be around the same as a 4.6 in HP with a stock 5.4 except higher in Tq. The heads still suck. And if you want to change the intake you have to buy the addapter plates. Not worth it too me. 11:1 CR should make you see the most gains in HP/Tq. Good luck, at least it's not the same old same old.
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Old 11-19-2007, 10:40 AM
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1fstblckgt
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Default RE: what can i expect out of a 5.4L?

Well... you just rained on his parade.


Im gonna say since its free... you might as well go ahead and get it just in case yours craps on you at some point.
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Old 11-19-2007, 10:46 AM
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Sxynerd
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Default RE: what can i expect out of a 5.4L?

Maybe I should give him a hug to help him feel better! I didn't mean it so sound all negative. [sm=imsorry.gif][sm=smiley31.gif]
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Old 11-19-2007, 11:11 AM
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ben790450
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Default RE: what can i expect out of a 5.4L?

The mpg isnt that bad! But at 11:1 it would be lol but yeah i say go for it!
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Old 11-19-2007, 01:43 PM
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SINISTER
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Default RE: what can i expect out of a 5.4L?

Like stated above, you'll be using the same suffocating 2v heads. This will limit what you can see out of the project.
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Old 11-19-2007, 04:55 PM
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Ehmark
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Default RE: what can i expect out of a 5.4L?

That means you should put 4v heads lol.
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Old 11-19-2007, 04:57 PM
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oxfordgt
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Default RE: what can i expect out of a 5.4L?

If I got a free 5.4 I would save up and build it right with 4v heads. Its not really worth it to use 2v heads N/A
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Old 11-19-2007, 05:39 PM
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johnr2001gt
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Default RE: what can i expect out of a 5.4L?

the swap is not as easy as you think, I just helped my friend do one 2 weeks ago. You have seriuos low end torque thats about it. my 4.6 still bust his a$$.the adapters to use your intake are crap . I would just assume build the 4.6 but to each there own.
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Old 11-19-2007, 05:46 PM
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amoosenamedhank
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Default RE: what can i expect out of a 5.4L?

ORIGINAL: johnr2001gt

the swap is not as easy as you think, I just helped my friend do one 2 weeks ago. You have seriuos low end torque thats about it. my 4.6 still bust his a$$.the adapters to use your intake are crap . I would just assume build the 4.6 but to each there own.
I disagree with you, I did the swap and I didn't find it that difficult. If you have the capability to pull and engine you shouldn't really have too much difficulty with the swap.

Is the 5.4 stock? If so, of course you're going to hand him his ***....does he even have any suspension mods to handle this new low end torque? You can't just swap to a 5.4 and expect it to be a rocket ship. You have to be reasonable with the whole thing.
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