GT500 5.8 swap

RubberCtyRauder said:
gonna need more than a couple inches
a 5.4 DOHC is more than 7 inches taller. Not interested in SOHC installs.


Engine DimensionsEngineHeightDepthWidth4.6 SOHC26"23 5/8"26 5/8"4.6 DOHC27 1/8"23 5/8"26 5/8"5.4 SOHC28"23 5/8"27"5.4 DOHC35 1/2"23 5/8"28 1/4"

Show me anywhere on the net where a 5.4 or 5.8 DOHC has been installed in a panther. crown vic, marquis, marauder...No 5.4 SOHC lighting motors either..that's not DOHC
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35.5" is a navigator 5.4...have you ever seen those navi truck intakes?

here is one in my buddy's 5.4 4v lightning




you know tall one is with a normal intake like the 5.4's get? Like the sheetmetal sullivan style?

yes...same truck...we're going twin turbo on it so swapped intakes.



28.5" tall.


yup...a mere 3/4" taller than the factory 4.6
 
4.6 dohc is 26 5/8" wide
5.4 dohc is 28 1/4" wide

Thats 1.5" difference in width....or....3/4" wider on each side.

Go stare at your motor and tell me whats all within 3/4" of touching the current motor down the valve covers....pretty much nothing
 
I said panther chassis, don't care about a truck swap, not the same..show me a panther 5.4dohc swap..nothing more, nothing less
 
again...tell me what is within 3/4" of the current motor that cannot be fairly easily moved right out of the way....dont worry, I'll wait.

3/4" taller, 3/4" wider on each side...take some pics and use some fancy ms paint skills to point out the immovable.
 
I'm not wasting my time..you failed to prove it has been done in a panther chassis..intake height is just part of the equation..You keep beating around the question...5.4DOHC in panther chassis..you keep telling me where it does fit and how in another platform!!!!!because you have never done it in a panther chassis..So when you get it all figured out and swapped, let us know how it went. until then pound salt.
 
You're the same dude that already went on this rant in another thread: http://www.mercurymarauder.net/forums/showthread.php?t=97416

Until you've actually tried it, you can't go around saying, "oh yeah it's easy as hell! The only reason no Panther owner has tried it is because we're all close minded!" As soon as you try it successfully, make a thread about it. I'd be happy to read about how it was actually done, not just thought about.
 
There's a member on here who goes by the handle "Massacre" who did this swap ages ago into an aero panther. Hopefully he comes in and settles this.
 
I hope so I'm tired of all the naysayers Hood clearance is not a factor becouse I'll OBVIOUSLY have to but a modified hood in
 
I got a shop and tools at my disposal to make mods on frame and suspension I just need a starter plan and more research before I start pouring money into building a 5.8
 
Its gonna cost probably 20k+ to build.Anybody know if the 70 tranny can be beefed up to handle the 5.8 or maybe switch to a 75??
 
Just an FYI the 4.6l DOHC motor can hit 500hp no problem and for half what you plan to spend just to buy your fancy 5.8l motor. If you are aware of the car called the Koenisegg CCR, it is powered by a 4.6 DOHC modified motor and spits out 800+ hp.....just sayin. If you have your heart strung on that monstrous 5.8 though, please please give us a nice write up on it, i would love to see how that works out.
 
Sparker1982..i don't believe you ever told us your goals of this 5.8 swap..What is your RWHP goal? either you are thinking of the SOHC 4.6 which does peak out around 400 rwhp with mods for the most part or don't have much knowledge in the 4.6 DOHC..Why do you want to go thru such a painstaking swap and have troubles to work around than do a build that is tried and proven to get the result you want?
 
RubberCtyRauder said:
I'm not wasting my time..you failed to prove it has been done in a panther chassis..intake height is just part of the equation..You keep beating around the question...5.4DOHC in panther chassis..you keep telling me where it does fit and how in another platform!!!!!because you have never done it in a panther chassis..So when you get it all figured out and swapped, let us know how it went. until then pound salt.
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too busy doing swaps in f150's and mustangs to waste time on a 4-door land barge swap just for giggles.

but keep believing 3/4" is keeping you from doing it.
 
Bad_S55 said:
You're the same dude that already went on this rant in another thread: http://www.mercurymarauder.net/forums/showthread.php?t=97416

Until you've actually tried it, you can't go around saying, "oh yeah it's easy as hell! The only reason no Panther owner has tried it is because we're all close minded!" As soon as you try it successfully, make a thread about it. I'd be happy to read about how it was actually done, not just thought about.
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im not out racing my 4-door tank lol...so why would I do it?

Ive got a light weight 2-door for my racing needs. 5.4 4v turbo with a 6r80 in a sn95 on a stock computer...thats what i spend my time on (yes, also told on that one that it "cant be done" lol)

if i can ever find a busted up crown vic though...i'll drop it in and take pics just to show it fitting.

"cant be done" is always said by people who are scared to try. I'm just a doer.
 
ZoeChamp316 said:
Yes he did, he pulled the 5.4 dohc motor out because of the weight he said it handled really sloppy because it was very unbalanced. It does now have a 4.6L dohc but if he wants to go back and put the 5.4 dohc the set up is already there for him to do so.
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Okay Chief. I don't know it's history before that so I'll take your word on that. That's still an aero, not a whale. A fair amount of different stuff.

Here's another thing I can say about the 5.4 DOHC; the extra deck alone height isn't the problem. The problem is that it pushes the already wide heads out even further, ramming right into the HVAC box.
 
65fastback2+2 said:
im not out racing my 4-door tank lol...so why would I do it?

Ive got a light weight 2-door for my racing needs. 5.4 4v turbo with a 6r80 in a sn95 on a stock computer...thats what i spend my time on (yes, also told on that one that it "cant be done" lol)

if i can ever find a busted up crown vic though...i'll drop it in and take pics just to show it fitting.

"cant be done" is always said by people who are scared to try. I'm just a doer.
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So whats stopping you from starting on this project? Busted up Crown Vics are a dime a dozen. Chop chop.
 
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