View Full Version : FYI The 2004 V6s will be 3.9L
The Windstar and Mustang are getting a revised 3.9L for 2004. Its the same engine with a slightly different offset grind on the crank.
Its being done for marketing reasons. I can't explain it....it still doesn't make sense to me but I know for the new Freestar they are trying to get away from the "3.8L" legacy.
need4mospd
06-23-2003, 11:34 AM
hmmm, so no overhead cam for the V6's in years to come.
3.9L sounds wierd. Isn't that the same size as the new Thunderturds v8?
gitman
06-23-2003, 11:38 AM
hmmm, so no overhead cam for the V6's in years to come.
he didn't say that.
pete, any word on power specs?
Bloodninja
06-23-2003, 11:38 AM
Do you know the power output?
Blake95
06-23-2003, 11:45 AM
this actually IMO is a good thing for now. the 3.8 v6 is starting to get somem decent aftermarket support. if Ford changed it, the little support we have now may disapear for the new type of engine. my gues would be if they keep with a spilt port type engine, i would assume around 210-220 bhp. just guessing but if they dont they better have it geared real nice considering the mustang needs to have a decent power increase from the factory to keep up with all the other "sporty" cars on the road/in its class
gitman
06-23-2003, 12:10 PM
again, he didn't say anything about the 05 models.
justin00v6
06-23-2003, 12:13 PM
maybe pick up 5hp/5tq from the slightly larger displacement...not much anyways, but i guess every little bit helps
are they going to keep the 2.3xx journal, and change the piston CH? or diff crank journal too?
Rych232
06-23-2003, 12:18 PM
i would assume around 210-220 bhp.
Out of 6 extra cubic inches? I doubt it. But who knows.
Why not just use the 4.2L??? Seems more logical to me. Even more interesting why make a change the YEAR before a new engine will be used anyway?
Chris_Red_V8
06-23-2003, 04:34 PM
98 Mustangs had a lot more common in wiring to 99+ stangs than they did to 94-97. Its common practice to do something like that. I had mentioned the rumor before of the 3.8, but interesting to see it be a 3.9L. I bet it will be found in the 05+ stangs as well, the rumor said they'd continue to use the pushrod engine, at least for the first generation of 05 stangs.
OGC_99_Rider
06-23-2003, 06:15 PM
i would assume around 210-220 bhp.
Out of 6 extra cubic inches? I doubt it. But who knows.
Why not just use the 4.2L??? Seems more logical to me. Even more interesting why make a change the YEAR before a new engine will be used anyway?
If they are moddifying it for the "freestar" then they might as well stop production of the old one all together and just use the new one
Justang2k
06-23-2003, 06:41 PM
Standard on the Freestar is a 3.9L. they will offer the 4.2L as an option.
It'd be cool if they did the 4.2.
TuxMask-Andy
06-23-2003, 07:11 PM
3.9L ??!!
WAck!!! :disgust:
zbgsaa
06-23-2003, 11:24 PM
3.9L ??!!
WAck!!! :disgust:
better than that 3.0
SlasherX
06-23-2003, 11:43 PM
3.9L ??!!
WAck!!! :disgust:
better than that 3.0
kickass, i really think they can improve the 3.8 by keeping it around.
062stang
06-24-2003, 02:42 AM
i think this ford should put a brand new v6 in, instead of revising the old dinosour of a motor the 3.8. dont get me worng its a great motor, but technology had really advanced since it was first designed. ford could make a motor that makes more power out of less cubic inches like alot of the import v6 that make more power out of a v6 then the GT motor does stock for stock. i think ford really needs to up the power out put on the v6 and even more on the GT.
-umesh
99whitestang
06-24-2003, 04:19 AM
i think this ford should put a brand new v6 in, instead of revising the old dinosour of a motor the 3.8. dont get me worng its a great motor, but technology had really advanced since it was first designed. ford could make a motor that makes more power out of less cubic inches like alot of the import v6 that make more power out of a v6 then the GT motor does stock for stock. i think ford really needs to up the power out put on the v6 and even more on the GT.
-umesh
keep dreamin' pal! If you think Ford is going to put a boat load more power in the V6, yeah right, they have to keep the V6's power away from the GT/V8 enough for people to still buy the GT, yeah Ford could proably spend tons of $$ in Research and development (R&D) and come up with a 3.8L or 3.9L V6 that makes 250-275hp, but then the GT would have to be 320-350hp, and then the Cobra would have to be 500hp, and getting that kind of power past the insurance pedlers, the EPA, and still be able to keep it affordable (aka a Muscle car) would be nearly impossible... you are asking for to many different ends of the spectrum...
I say the new Ford 3.9L will proably be around 205hp I would guess, atleast for the Mustang, I am sure the Freestar will have 215hp or something, more than the Mustang, for some silly reason they have always done that...the 3.9L maybe quietier and more refined, smoothier? that is the number 1 complaint about the 3.8L, espicially from the soccer mom driving Windstar owners ;) :rolleyes:
The 05 Mustang will have the 4.0L SOHC.
The advertised power for the 3.9L is going up slightly but I don't think you will see more than a 5hp increase.
99whitestang
06-24-2003, 04:42 AM
The 05 Mustang will have the 4.0L SOHC.
The advertised power for the 3.9L is going up slightly but I don't think you will see more than a 5hp increase.
hmm, very interesting. the aftermarket for the 3.9L engine is really gonna suck, can you imagine having a car they made a engine for for 1 year, imo :( ;)
Rancherlee
06-24-2003, 06:16 AM
Well the aftermarket should be just fine for the 3.9L, I'm willing to bet that all the 3.8L aftermarket parts will fit just fine.
gitman
06-24-2003, 07:23 AM
Its the same engine with a slightly different offset grind on the crank.
99whitestang
06-24-2003, 07:52 AM
Its the same engine with a slightly different offset grind on the crank.
So this wouldn't effect the way mods would fit? I was thinking with the changes, things might be moved alittle, and mods wouldn't fit/work as they do with the 3.8L, :confused:
Justang2k
06-24-2003, 08:24 AM
cool. glad to see they are putting he 4.0 SOHC into the V6 Stangs. I think that's the right choice!
gitman
06-24-2003, 03:53 PM
Its the same engine with a slightly different offset grind on the crank.
So this wouldn't effect the way mods would fit? I was thinking with the changes, things might be moved alittle, and mods wouldn't fit/work as they do with the 3.8L, :confused:
if you think about it logically, you will come to the conclusion that the crank size will not affect any mods, unless of course you're replacing the rods/pistons
Justang2k
06-24-2003, 05:38 PM
provided it's the same intakes, TB position, and crank. we MAY need a new cai's (at least the TB portion) and new UDP's.
just something to think about.
gitman
06-24-2003, 06:13 PM
provided it's the same intakes, TB position, and crank. we MAY need a new cai's (at least the TB portion) and new UDP's.
just something to think about.
why?
the 4.2 (with mustang intakes) is the same as the 3.8 but just a different crank (same situation as the 3.9, people!) and it uses the same CAI and same UDP.
Full Tang
06-24-2003, 06:37 PM
Will there ever be any new or revised split port heads for the 3.9/4.2 or are the current SPIs going to be it until it's retired? I'm guessing the latter.
Justang2k
06-26-2003, 09:14 PM
provided it's the same intakes, TB position, and crank. we MAY need a new cai's (at least the TB portion) and new UDP's.
just something to think about.
why?
the 4.2 (with mustang intakes) is the same as the 3.8 but just a different crank (same situation as the 3.9, people!) and it uses the same CAI and same UDP.
there is more different than just the crank and intakes on the 4.2.
justin00v6
06-26-2003, 09:51 PM
provided it's the same intakes, TB position, and crank. we MAY need a new cai's (at least the TB portion) and new UDP's.
just something to think about.
why?
the 4.2 (with mustang intakes) is the same as the 3.8 but just a different crank (same situation as the 3.9, people!) and it uses the same CAI and same UDP.
there is more different than just the crank and intakes on the 4.2.
you can take a 4.2 shortblock, bolt on a bunch of stock mustang parts, and you basically have the same thing with a longer stroke, end of story
this 3.9l may have a few differences in the crank, rods, and pistons, but thats all that is going to be anywhere near significant...we are talking about a longer stroke, not a whole new motor design
stock00red6
06-27-2003, 02:16 PM
If they are so set on the 4 litre for 05,
why are they still testing the 3 litre dohc engine?
gitman
06-27-2003, 03:16 PM
why are they still testing the 3 litre dohc engine?
who said they were?
stock00red6
06-27-2003, 04:46 PM
The people in the test lab i work in
Full Tang
06-28-2003, 11:34 AM
Weren't they having trouble getting the 4.0 SOHC emissions certified for passenger car use? I don't have a problem with them using the 3.0 DOHC as long as they gear it right and keep the weight down. As it is, a 3300+ lb. duratec taurus will almost keep up with an automatic V6 mustang.
The people in the test lab i work in
It'll be a 4.0L.
The people in the test lab i work in
It'll be a 4.0L.
automobile magazine has also misstated that it is "set in stone" that the 3.0L out of the LS6 will be used, sans vairible valve timing, make just about 215hp
stock00red6
06-30-2003, 08:12 PM
I'm not saying it will or won't only we are still testing both.
Justang2k
11-12-2003, 06:20 PM
back from the dead for an update...
haven't seen the 3.9L in the Mustangs. I do see it in the Freestar though, along with the 4.2L upgrade ;). Did they actually do the 3.9L in the Mustangs and just not advertise it? Or did they not do it for some reason?
nikko
11-12-2003, 08:00 PM
back from the dead for an update...
haven't seen the 3.9L in the Mustangs. I do see it in the Freestar though, along with the 4.2L upgrade ;). Did they actually do the 3.9L in the Mustangs and just not advertise it? Or did they not do it for some reason?
If you look at the specifications for the V6 stang on the ford website you'll notice that it doesn't mention displacement anywhere... I think they're trying to quietly slip the 3.9 in there for a year without giving it much press or attention...
Dutch
11-12-2003, 10:39 PM
If you look at the "performance specs" for the Mustang it lists the engine as 232 ci.
Justang2k
11-12-2003, 11:36 PM
Edmunds shows the Freestar as a 3.9 and the Mustang as a 3.8.
But I wouldn't think Ford would make two different cranks, when it'd be cheaper to make just one.
ZStang
11-14-2003, 09:12 AM
3.9L will sound just as wierd as 5 cyl in Volvos but there must be an advantage and they'll def. need an incentive for '04 w/the '05 :rolleyes: being so Highly publicized and all
Chad2001
11-14-2003, 06:24 PM
I looked at a couple 2004 v6's at the dealer a couple weeks ago and they are still the 3.8's these were the 40th annaversary editions.
Justang2k
02-16-2004, 09:51 AM
so do we have any confirmation on this Pete? Is the Mustang a 3.9L and just not advertised?
Justang2k
02-16-2004, 10:51 AM
I went down there just now to get my exhaust gaskets for my LT header install. I asked him to look up the two cranks. same part number... 2004 Mustang = 2004 Freestar. part number is 1F2Z6303AA.
Just thought I'd pass that along. It's funny that Ford advertizes the stang as a 3.8L and the freestar as a 3.9L. That was the confusion for me. Hopefully it clears it up for some of you others too.
justin00v6
02-17-2004, 05:18 AM
The initial 04s are 3.8s, later on they will switch to 3.9s. If you go to order a crank they may ask for the VIN so they can track which engine it has. Theres really no difference 3.8 vs 3.9, power is the same.
Justang2k
02-17-2004, 04:19 PM
yeah, I wouldn't expect any performance out of that. I stated it for general knowledge.
viper32cm
02-17-2004, 07:37 PM
The initial 04s are 3.8s, later on they will switch to 3.9s. If you go to order a crank they may ask for the VIN so they can track which engine it has. Theres really no difference 3.8 vs 3.9, power is the same.
Why would ford do that? Are they just letting their surplus of 3.8 blocks run out and then use production from the 3.9 to take up extra 2004 mustang slack? I guess that makes sense if the 3.8 isn't being offered in any more ford cars, I guess.
Thomas
02-17-2004, 09:01 PM
keep dreamin' pal! If you think Ford is going to put a boat load more power in the V6, yeah right, they have to keep the V6's power away from the GT/V8 enough for people to still buy the GT, yeah Ford could proably spend tons of $$ in Research and development (R&D) and come up with a 3.8L or 3.9L V6 that makes 250-275hp, but then the GT would have to be 320-350hp, and then the Cobra would have to be 500hp, and getting that kind of power past the insurance pedlers, the EPA, and still be able to keep it affordable (aka a Muscle car) would be nearly impossible... you are asking for to many different ends of the spectrum...
Ya know, that reminds me of GM's vehicle lineup from 9 years ago...and those were all NA pushrod motors.
-Thomas
vBulletin® v3.6.4, Copyright ©2000-2010, Jelsoft Enterprises Ltd.