2000 GT 4.6 build or swap - Mustang Evolution

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Old 05-10-2014, 05:18 PM   #1
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2000 GT 4.6 build or swap

I have recently gotten a knocking in my motor. I first thought it might have been the valves but after taking the valve covers off and further inspecting it appears that one cylinder is jacked up. The rings are shot and allowing blow by to go into the engine. So now the question is whether to rebuild my engine or swap it out for a cobra. The local junk yard has a couple 2V that I could pick up for roughly 200. I would like to keep my 2V mainly because I have a vortech s.c on right now and am trying to see which would be easier and/or cheaper.

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Old 05-11-2014, 09:43 AM   #2
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How many miles did it have on it?
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Old 05-11-2014, 08:44 PM   #3
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You won't be able to rebuild for 200 but if you have some time and money you can build it to hold up to what you're running.
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Old 05-11-2014, 08:56 PM   #4
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He's not talking about rebuilding he's talking about a replacement from a junkyard.

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Old 05-11-2014, 09:12 PM   #5
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I thought that was an understood statement... you will not be able to rebuild for $200 and if that is all you can spend junkyard would be the way to go. Really just trying to make 20 posts so i can try to sell my stang on here 98 gt fully built turbo charged tko 500 trans tubular front end coil overs all around with adjustable dampeners short throw 19 fronts 20" rears with 305 tires. Can be seen on you tube icr mustang new tune. That was pre turbo set up. New motor and trans have less than 50 miles on them.
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Old 05-11-2014, 10:55 PM   #6
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I thought that was an understood statement... you will not be able to rebuild for $200 and if that is all you can spend junkyard would be the way to go. Really just trying to make 20 posts so i can try to sell my stang on here 98 gt fully built turbo charged tko 500 trans tubular front end coil overs all around with adjustable dampeners short throw 19 fronts 20" rears with 305 tires. Can be seen on you tube icr mustang new tune. That was pre turbo set up. New motor and trans have less than 50 miles on them.

All those mods with less then 50 miles on them and you're selling... Sounds sketchy lol
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Old 05-12-2014, 11:20 AM   #7
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75k miles. I was talking about 200 for a motor and building it from there.

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Old 05-12-2014, 11:22 AM   #8
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75k miles. I was talking about 200 for a motor and building it from there.

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He was talking to the other guy. $200 for a PI motor in working condition is really good. If it still runs I'd just straight swap it and see how long it lasts.
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Old 05-12-2014, 12:41 PM   #9
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Do a 5.4 swap. You can find them super cheap in trucks and they are a direct swap. Same base as a 4.6 but with a taller deck height for longer stroke.
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Old 05-12-2014, 01:04 PM   #10
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I say swap in $200 replacement 2V so your car still drives and build your old 2V in the meantime. Best of both worlds in my opinion!
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Old 05-12-2014, 05:09 PM   #11
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If I do a 5.4 swap what else am I going to need. I would imagine the ecu fuel pump and other simple stuff. And I dunno if the 5.4 would be compatible with my supercharger

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Old 05-12-2014, 06:23 PM   #12
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The 5.4 uses your ecu and fuel system. It is literally a drop in with only a few gotchas. Yes you may have issues with a supercharger due to the 5.4 being larger.

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Old 05-13-2014, 01:29 AM   #13
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If you really want to take on a project for power. Swap in the 5.4 then change it over to a 4v since the 2v and 4v heads are interchangeable. Just need a few other parts and fit it between the towers.
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Old 05-13-2014, 06:35 AM   #14
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Are you saying the 4V heads for the 4.6 work on the 5.4 as well? Or does the 5.4 have it's own 4V heads?
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Old 05-13-2014, 03:06 PM   #15
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The 5.4 block can accept both 2v and 4v heads, which means Cobra and Mach heads, but you will have to look at your piston dish and compare it to the combustion chamber of the heads you have to figure out the compression. So you could essentially pull a 5.4 2v from one of the thousands of F150s that are in junkyards across the country and swap it over to 4v with the correct heads and other accessories. But that one isn't as straight of a swap as a 5.4 2v, which literally drops in like a replacement 4.6 2v.

If you don't have plans for a power adder or at least forged crank/rods/cams to spin it to the moon then i would stick with the 5.4 2v, essentially the same as the 4.6 but a taller deck height for a longer stroke. So horsepower is about the same but a ton more torque, and torque is what makes your tires spin.

The 5.4 4v came in the Lincoln Navigator, as well as the Ford GT and GT500s (07-12 i believe). Each are slightly different though as the Navigator has the iron block still where the other 2 have the lighter aluminum block. A built and turbo'd 5.4 4v has maaaadddd potential.

I've actually been thinking of this swap myself instead of building the 4.6.
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Old 05-13-2014, 03:18 PM   #16
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But for what OP wants i think it would be best for just a basic 5.4 2v swap since that is a direct replacement. As Scotty said it reuses the 4.6 ecu and fuel system, so its a super easy swap. And with cheap adapter plates a stock GT intake will fit it to make it breathe a bit better. But power won't be as high in the rpm range, it'll be more of a torque car at that point (truck engine).
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Old 05-13-2014, 03:45 PM   #17
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I know a guy who put a 5.4 in his Mustang, it was a 3V 5.4 .. regardless, with a tune, headers and a few other things, it was a fun street car, but still a turd.

I think it dyno'd at like 280whp and 330rwtq.

The 5.4's (regardless of 2v/3v/4v) without cams and a good intake just run out of breath on the top end.
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Old 05-13-2014, 08:24 PM   #18
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What kind of numbers do you think you could expect from a built 4V 5.4?? i've never really considered that route as a build option down the road, but it sounds like it could be a monster! Not to mention it would set you apart from every other mustang!
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Old 05-13-2014, 09:16 PM   #19
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So with all this being said the 5.4 2v should be pretty much a straight swap from the 4.6. Without having a good intake the engine will suffer power loss at high rpms? I'm pretty confident that the s.c I have will work on the 5.4 motor so the higher rpms shouldn't be a problem. My main concerns are what can I keep and what do I have to get in order for it to work? Like wiring harness or injectors or simple stuff like that. From what yinz have said it should be a straight up swap but is there anyone that has done this swap and has advise on what to do?

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Old 05-13-2014, 09:18 PM   #20
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That and I don't really want to have a car that gets 8 miles to the gallon...

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Old 05-13-2014, 09:20 PM   #21
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That and I don't really want to have a car that gets 8 miles to the gallon...

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Well you already missed your chance for a Prius. 50miles per gallon or 50 smiles per gallon?
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Old 05-13-2014, 09:30 PM   #22
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Well you already missed your chance for a Prius. 50miles per gallon or 50 smiles per gallon?
Smiles all day

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Old 05-13-2014, 09:36 PM   #23
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So with all this being said the 5.4 2v should be pretty much a straight swap from the 4.6. Without having a good intake the engine will suffer power loss at high rpms? I'm pretty confident that the s.c I have will work on the 5.4 motor so the higher rpms shouldn't be a problem. My main concerns are what can I keep and what do I have to get in order for it to work? Like wiring harness or injectors or simple stuff like that. From what yinz have said it should be a straight up swap but is there anyone that has done this swap and has advise on what to do?

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Yinz from Pittsburgh? lol
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Old 05-13-2014, 09:38 PM   #24
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Yinz from Pittsburgh? lol
Originally yes I am. Currently in CO for a while

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Old 05-13-2014, 09:41 PM   #25
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Originally yes I am. Currently in CO for a while

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Sweet! I go to Pitt, living in scenic south oakland haha. Anyway, sorry for straying off topic
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Old 05-13-2014, 09:57 PM   #26
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Sweet! I go to Pitt, living in scenic south oakland haha. Anyway, sorry for straying off topic
H2P die hard Pittsburgh fan even 1500 miles away. But yea the 5.4 2v should be a easier swap but does anyone know about the 3v? What is all included with tackling that bear? And with this swap is an upgraded suspension needed for the weight?

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Old 05-13-2014, 10:40 PM   #27
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Originally yes I am. Currently in CO for a while

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Not to derail the thread further, but what part of CO?

As to the engine, I would stay 4.6 2v and build that. That's gonna be the least amount of headaches compared to an engine swap. The 5.4 is cool and all but having a supercharged engine that red lines in the mid 5k range isn't gonna be very fun iny opinion. They make torque for days though.
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Old 05-14-2014, 11:28 AM   #28
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Not to derail the thread further, but what part of CO?

As to the engine, I would stay 4.6 2v and build that. That's gonna be the least amount of headaches compared to an engine swap. The 5.4 is cool and all but having a supercharged engine that red lines in the mid 5k range isn't gonna be very fun iny opinion. They make torque for days though.
Thats exactly what the Ford Lightning is though. A supercharged 5.4. It doesn't rev high but it doesn't need to because its got a ton of torque, and from lower in the rpms, that plus a twin screw supercharger and you will be roasting tires all day long.
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Old 05-14-2014, 11:39 AM   #29
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Thats exactly what the Ford Lightning is though. A supercharged 5.4. It doesn't rev high but it doesn't need to because its got a ton of torque, and from lower in the rpms, that plus a twin screw supercharger and you will be roasting tires all day long.
The lightning supercharger is the one intake option really for a 5.4l 2v. Problem is putting one in a mustang requires like a 6" cowl hood minimum lol.
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Old 05-18-2014, 12:18 PM   #30
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I found a 4.6 in an expedition looks to be in good shape. In a 2000. Stupid question but would it work?

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Old 05-18-2014, 02:45 PM   #31
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A PI motor is a PI motor. Yes it will work. You just swap all your Mustang stuff over to it and roll. As a 2000 you should definitely upgrade to an updated intake though. They are $215 on LRS and AM. ONLY buy the Ford piece.
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