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Old 04-04-2015, 02:47 PM   #1
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96-98 4.6 4v

Is it worth swapping a 98 4.6 4v into a 2000 mustang gt ? im thinking about buying one from my uncle complete engine and tranny. Does it need any modifications to swap it in ?
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Old 04-04-2015, 06:01 PM   #2
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No modifications needed. Just remember less hp than the 99-04. Nonpi vs pi engine.

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Old 04-04-2015, 06:23 PM   #3
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He said a 4valve though so he will pick up quite a bit of power.

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Old 04-04-2015, 07:49 PM   #4
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There are more then one write-ups on this. Google is your friend.. There are some modifications needed, fuel lines, coolant hoses, wiring harness. And other small thing. Easy as far as motor swaps go...


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Old 04-04-2015, 08:24 PM   #5
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Its a 95% drop in as far as the motor. There will be some "gotchas" depending on what vehicle it is out of. Google is your friend, there are a TON of write ups for Mark VIII 4V swaps as well as the 96-98 4V swaps into GT cars.
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Old 04-04-2015, 10:35 PM   #6
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Didn't see 4v. My bad

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Old 04-06-2015, 12:50 AM   #7
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I was wondering if it's worth it because if you have full bolt ons on a 2v then your just looking at like 350hp if your lucky depending on your motor . I'm trying to get it in the 400 - 500 range but that's nearly impossible for N/a and I'm not really trying to go for s/c or t/c . And I also heard that if you stroke it it only adds like 30-50 hp . I just want to know what would be best .


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Old 04-06-2015, 06:10 AM   #8
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Originally Posted by yahua2233 View Post
I was wondering if it's worth it because if you have full bolt ons on a 2v then your just looking at like 350hp if your lucky depending on your motor . I'm trying to get it in the 400 - 500 range but that's nearly impossible for N/a and I'm not really trying to go for s/c or t/c . And I also heard that if you stroke it it only adds like 30-50 hp . I just want to know what would be best .


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No you don't. You'll make somewhere in the 250rwhp range which is 290-300hp at the flywheel.
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Old 04-06-2015, 03:47 PM   #9
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Ok so I looked at the motor it actually came of a 99 COBRA so that would be just a direct drop in right ?


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Old 04-06-2015, 06:48 PM   #10
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It is more like a 90-95% drop in. There are some things you have to do but its not anything you can't do if you are going to be swapping motors anyway.
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Old 04-06-2015, 08:24 PM   #11
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Quote:
Originally Posted by yahua2233 View Post
I was wondering if it's worth it because if you have full bolt ons on a 2v then your just looking at like 350hp if your lucky depending on your motor . I'm trying to get it in the 400 - 500 range but that's nearly impossible for N/a and I'm not really trying to go for s/c or t/c . And I also heard that if you stroke it it only adds like 30-50 hp . I just want to know what would be best .


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Holy sh*t, if a full bolt on 2v nets 350 at the fly then I bought the wrong damn car.
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Old 04-07-2015, 06:58 AM   #12
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Holy sh*t, if a full bolt on 2v nets 350 at the fly then I bought the wrong damn car.
260hp+35hp for exhaust+15hp for CAI+15hp for TB/MAF+10hp for pullies+15hp for a plenum=350!!

If you are are a ricer add another 10-15hp for a grounding kit and then 5hp per sticker on the car.

In all seriousness though, a normal "bolt on" car with stock manifolds and a tune is going to put down between 250 and 260 to the wheels which is DAMN good for a 281CI motor with a circa 1997 top end. The 4V does even better with the same time period tech and its not exactly pricey to find an 03-05 Aviator motor to drop in and its REALLY cheap to go the Mark VIII route.
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