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Old 07-10-2004, 08:04 PM   #1
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4.2l powa..

Hi,
I just wanted to know if any one knows what the stock powa is on the 4.2l v6 engine when it is installed in the trucks?? how about when it gets in to the stang??
I just wanted to know the difference i will see from a simple engine swap. thanks for any help, in advance!!
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Old 07-10-2004, 08:22 PM   #2
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Robs got a 4.2 in his stang... im sure he'll chime in soon
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Old 07-10-2004, 08:57 PM   #3
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I hope he chims in soon, im going to bed in a bit.
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Old 07-10-2004, 09:02 PM   #4
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Well I'm here!!! Anyways, a few questions need to be answered first.

- What year is your stang?
- If your stang is a 94-98, do you plan on keeping it single port?
- What mods do you have done?

Anyways, to answer some of your questions, a stock 4.2L V6 is a 97-98 F-150 is 200hp. In 99 they did a slight mod to them and 99+ have 202hp. Now if you do a straight swap into your mustang, you can use the same heads, but the intakes need to be from a 99+ V6 mustang, or if you decide to use single port heads, you need to change those over. In my opinion, I would just stay with what ever style heads you have. It's less hassle, and less money. If money is not an issue, then go with the split port heads, and one final tip. Do all the work you want to the block while it's out of the car. Mainly meaning headers. Doing headers while the engine is still in the car completely sucks. But take your time and do it right the first time, instead of going back and saying, "Oh I wish I woulda..." Have a game plan a stick to it as much as possible.
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Old 07-10-2004, 09:41 PM   #5
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what do you have to do to a 99+
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Old 07-10-2004, 10:27 PM   #6
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do you plan on swapping over the whole block, or do you plan on swapping just the internals? Either way, you basically just need to swap the intakes over. I'm not 100% sure if it's just the upper or both, but I'm like 99% sure it's just the upper. And then you also need a chip or have your EEC re-flashed.
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Old 07-10-2004, 11:05 PM   #7
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im not planning it yet but im seeing if i should
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Old 07-10-2004, 11:09 PM   #8
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I think it's a "have-to" mod for those seriously modding there 6. But it all depends how much you want to get into your engine. I picked up about 20ft/lbs of tq across the board and only 5 hp, but that's all gonna change real soon.
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Old 07-11-2004, 01:15 AM   #9
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... what the hell is "powa"

2:
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Old 07-11-2004, 02:43 PM   #10
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4.2 swaps are cheapest motor swaps around pretty much. (generally talking about performance v8s and 4cyl, and the 4.2 isn't some powerhosue in and out itself)

answer all of 97's Q's and we can help you more. if you have an older car that you plan on keeping for a while, a 4.2 from a 97+ f150 isn't a bad idea. you can get the whole longblock for <1000. then comes in factors such as experience and available tools, equipment, and know-how.

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Old 07-11-2004, 04:17 PM   #11
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Quote:
Originally Posted by dark
... what the hell is "powa"

2:
LOL, i was in a hurry. I hope u can excuse that internet slang.

Im curently shoping for a project car, and i think a mustang v-6 would be nice. Ill probably end up geting an older sn95 car. it seem the split port makes more power so ill probably go with that.
it seems that the v-6 stangs im lookin at are a reall bargan these days. only like 2-3 k for a low miles example. the only thing that i want for it, taht says it wont fit is this key pad entry mod i saw in MM & FF. said it was for 99+ stangs, whats the computer difference there? whats the difference there that may be the culprit?? lack of power things?? it was just a thought.
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Old 07-11-2004, 04:26 PM   #12
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Quote:
Originally Posted by sarges_heroes20
LOL, i was in a hurry. I hope u can excuse that internet slang.

Im curently shoping for a project car, and i think a mustang v-6 would be nice. Ill probably end up geting an older sn95 car. it seem the split port makes more power so ill probably go with that.
it seems that the v-6 stangs im lookin at are a reall bargan these days. only like 2-3 k for a low miles example. the only thing that i want for it, taht says it wont fit is this key pad entry mod i saw in MM & FF. said it was for 99+ stangs, whats the computer difference there? whats the difference there that may be the culprit?? lack of power things?? it was just a thought.
OK, well if you come up with a game plan like the year of car you're going to use, then let me or us know so we can help ya out. The split port makes more power due to the design and extra airflow, but a single port style can do just as well with some help. Either way I highly suggest getting some big valved heads, at least a 220/220 cam, and some stake 3 intakes as a minimum for your 4.2 With a good tune you can easily see 200hp at the wheels. And for that I'll refer you to Alberto at American Motorsport.
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Old 07-11-2004, 05:16 PM   #13
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200 na hp to the wheels sounds kinda nice. I was hopin to get more than that. would the power really jump with a super charger or turbo vs the 3.8 with the same mods??
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Old 07-11-2004, 06:29 PM   #14
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^just be sure to keep your compression low if you're gonna go super or turbo. prolong the life of your engine
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Old 07-11-2004, 08:30 PM   #15
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Quote:
Originally Posted by sarges_heroes20
200 na hp to the wheels sounds kinda nice. I was hopin to get more than that. would the power really jump with a super charger or turbo vs the 3.8 with the same mods??
The power between the 2 isn't much, but a little noticable. But boost is a funny thing, you can just add more boost to make more power.
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DAMN Those are some old *** numbers!!! I need updated ones!!
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Old 07-11-2004, 08:36 PM   #16
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Stock compression is 9.2ish
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DAMN Those are some old *** numbers!!! I need updated ones!!
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Old 07-11-2004, 08:53 PM   #17
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well im eyeing turbos, i saw a mag. article on a guy with a turbo on his stock 3.8 v-6 (99+ body so its a split port) it made 300+ hp to the wheels. Im just checkin to see if i can see more power from a larger engine.
thats what the guys at stangnet seem to think with there v8's. that they will get 20 hp in the super charged engine if its stroked or bored or both.
Any way, thanks for the help!! I really appreciate it. much friendlyer site than stangnet.
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Old 07-11-2004, 09:05 PM   #18
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just found pro turbo kits 3.8 turbo, 3k for 275-320 whp. sounds nice for that hp range.
4.6l guys spend 5-6k for that kind of power.
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Old 07-11-2004, 09:08 PM   #19
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That's cool, if you need more help, ask. the only stupid question is the one not asked, unless the answer is in front of you of course.
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Old 07-11-2004, 09:37 PM   #20
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thanks 97stallion, i see u made this a sticky. WOW!!! I got a sticky on my first day here! WOOhHOOhohoho for me!!
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Old 07-12-2004, 07:57 AM   #21
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^if you're gonna tack on that kind of power i hope you're gonna take your time and spend enough $ to do it right... get forged internals and ported heads and intake, custom cam, etc... you can't slap a turbo like that on a relatively stock engine and expect it to go well for long
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Old 07-12-2004, 02:03 PM   #22
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I know the fords come with powdered metal conecting rods and maybe not so good pistons.
Where to look for conecting rods?? I thought i saw some one looking at 347 rods for his v6. is that true? will that work??
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Old 07-17-2004, 10:16 PM   #23
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4.2 powa in 4 eyes

You can also do a crank/rod/piston swap in the earlier roller and flat tappet blocks (pre 94).It needs only minor changes to run the 4.2 vales in 3.8 heads (custom valve guides) headers for a 83-86 can be had by purchasing headers from a '98 too.
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