Boring out rebuilt engine. - F150online Forums


Boring out rebuilt engine.

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  #1  
Old 03-09-2011, 10:00 AM
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Boring out rebuilt engine.

I haven't ever heard what the average size people bore out their 5.4l (330 or so) to after they need a rebuild.

I have no need for a rebuild anytime soon, but I was just wondering, because I'm about to come into alot of money and want to know if boring the 5.4 to something close to a 6.2, going to call a machine shop after work today.

If I'm confusing you, here's an example, Chevys 350 is usually bored out to the 383 stroker.
Ford equivalent = ?

Thanks all!
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  #2  
Old 03-09-2011, 11:31 AM
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You would need a stroker kit to bring close to the 6.2

Most 5.4s only go .020 or .030 over.
I know a guy with a 5.4 aluminum block that is bored and sleeved out to a 6.0
But I think he paid close to 10K for his short block.

Phil
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Old 08-31-2011, 05:29 PM
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what a bout a 4.6l?
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Old 08-31-2011, 05:45 PM
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Same, .020 over .030 MAX.
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Old 09-06-2011, 12:42 PM
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I'm not sure about boring out engines. You only gain a small amount in displacement and power. Stroker kits gain more in both categories and give that wicked loping sound.
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Old 09-06-2011, 01:45 PM
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Yes you make more power with a stroker kit,but they are very expensive.
The wicked loping sound comes from a high performance cam.
Not a stroker crank.
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Old 09-06-2011, 02:13 PM
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And that wicked loping sound is most often the sound of an engine that proves to be one sorry POS to have to drive in traffic or on a road trip.
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  #8  
Old 09-06-2011, 06:11 PM
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so would it be cheaper to buy a rebuilt 5.4 or rebuild my 4.6 and bore it out?
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  #9  
Old 09-06-2011, 06:39 PM
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buy a 5.4 from junk yard/craigslist and rebuild that
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  #10  
Old 09-07-2011, 12:33 AM
glc
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Boring engines out is old school - the new engines don't have enough wall thickness to bore it significantly - there's enough meat there to clean up a scored cylinder but not much more. You might be able to make a 4.6 close to a 4.7, but that's about it.
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