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lar
Dodge Dakota
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9/26/2004
20:05:50
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 Subject: 5.9 or 4.7
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Well I'm looking at getting a 02 or 03 QC but I'd like to know what would be the HP diference between the 5.9 and 4.7 also how does Gas mileage differ?
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Joey
Dodge Dakota
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9/26/2004
20:51:48
| RE: 5.9 or 4.7
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this has been talked about a lot but in the quad cab, the 5.9 has 245hp and 335ft-lbs while the 4.7 has 235hp and 295ft-lbs. so thats 10hp and 40ft-lbs diference at the expense of maybe 1-2 miles per gallon.
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Pittdawg
Dodge Dakota
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9/26/2004
22:08:12
| RE: 5.9 or 4.7
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Lar,
To answer your question correctly, the advertised power ratings of the 5.9 and 4.7 for those years are mistated, in general the dyno's of bone stock 4.7's and 5.9's are much close then the flywheel numbers suggest, although the 5.9 has approximately a 10 hp advantage as stated, the rwtq differnce is neglible, certainly not 40ft-lbs difference, in fact many 4.7's torque equals if not exceeds the 5.9. Just dig up numerous stock dyno posts on this website. The real advantage of the 5.9 is if you decide to heavily modify the engine, then the 5.9 has many more and less expensive mods available and can be built up much more then a 4.7.
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Brian Potter
Dodge Dakota
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10/16/2004
01:30:55
| RE: 5.9 or 4.7
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I am a tech at a chrysler jeep dodge dealership, i would
definately suggest a 4.7 cause there seems to be way less
problems than with the 5.9, 5.2, 3.9 family of engines as well as
the transmissions that are packaged with them. I own a 4.7 with
a 545RFE trans and i love it, no problems whatsoever. If you plan
to keep the truck for 100k or more get a 4.7.
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Jag
Dodge Dakota
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10/16/2004
12:23:58
| RE: 5.9 or 4.7
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What do you expect to hear from 4.7 owners? I personally hate them, but then I have a 5.9. Go figure. Good luck keeping the 4.7 running without a CEL...
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deerridge
GenIII
10/16/2004
15:24:16
| RE: 5.9 or 4.7
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I've got 45000 miles on my 03 RC 4.7 AWD and its never even coughed. I pull horse trailers and flatbeds up to 8000 lbs with it on a regular basis too. My gas milage this morning was 16.75 MPG city and rural driving, 12.5 last week with 220 miles pulling a horse trailer at 65mph on I-40, 18.5 on long trips with a passenger. 0-60 7.75, quarter 15.75@89 (G Tech). Best truck I ever had.
Real Horsepower
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Joey
Dodge Dakota
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10/16/2004
17:48:23
| RE: 5.9 or 4.7
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the only way a 4.7's torque can come close to the 5.9 is if it is a standard tranny. the 5.9 is a much bigger engine and torque is what it was made to produce. the difference is 40ft-lbs or comparing it to the r/t is 50ft-lbs. stock r/t get anywhere from 270-300 ft-lbs at the rear wheels while 4.7 gets 295 at the crank so there is definetly a big difference there
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JC
Dodge Dakota
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10/16/2004
20:38:15
| RE: 5.9 or 4.7
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From my personal experience, the 4.7L in a 4x4 is a dog when you haul or tow heavy loads. A good friend of mine has a 01 QC 4x4 with the 4.7 and hauls things (rock, mulch, atv) fairly routinely. A few weeks ago we hauled between 500-700 lbs of rock and had to go up a slight incline. I didn't expect this truck to be a powerhouse uphill especially with that heavy of a load but the darn thing felt as if it was going to die. I am not even embellishing. This truck was struggling and was not making anywhere near 300 pounds of trq at the wheels. He does have a good truck but it is nothing spectacular. It could use a bit more ponies under the hood. In all honesty, I can't picture this truck towing 8000lbs and still be able to get out of its own way!
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deerridge
GenIII
10/18/2004
15:14:35
| RE: 5.9 or 4.7
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Loads in the 8000 range are a bunch behind any truck. You aren't going to win any races or even try. The objective is to get the load there in one piece, not win a race. A Dakota's to light to be throwing stuff around and stay in the road, reguardless of the motor. My 4.7 outpulls my old 350 Silverado hands down pulling the same trailer. I do have the 3.92 rear end and all the heavy duty and handling packages though.
Real Horsepower
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Kowalski
GenIII
10/18/2004
17:01:05
| RE: 5.9 or 4.7
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JC - if the 4.7 QC is honestly struggling that badly, there's something wrong with it. I tow about a 5000 lb camper with my lightly modded 4.7 RC - it still accelerates uphills, enough so that guys towing in the group with 350s, v-10s and diesels will comment on how quick my truck is. That's with the 3.55 rear.
Lead, follow, or get out of the way
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FDdakotaRT
Dodge Dakota
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10/26/2004
13:34:06
| RE: 5.9 or 4.7
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Ok first of all you can't get the same low end grunt (torque) with a smaller overhead cam motor then you can with a bigger pushrod motor. Same case with the Mustang 4.6 and 5.0. Overhead cam motors make them most power at higher RPMs...unlike pushrod motors which make power at lower RPMs. A 4.7 5-speed/3.92 will run neck and neck with a 5.9 Dakota.....only because of weight diff. However with an auto on both 4.7 and 5.9 Dakotas the 5.9 is a quicker truck.
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midnightdak
Dodge Dakota
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10/27/2004
03:25:39
| RE: 5.9 or 4.7
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The 4.7 in my opinion is way better. First, of all its SOHC which its a lot less strain on the motor. Second, it has a 250,000 mile life expectancy on the motor. Not to mention its mostly aluminum which is lighter and for a $110 you can put the HO cams in them if your year that you want doesn't already have them. This is what?...20+hp which beats the whole ten hp that the 360 has over us. Don't take this the wrong way because i hate chevys but there 350's are a stock 300hp makes me wish dodge could do a little better than 245 and our 360 are 10ci bigger.
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jjj
Dodge Dakota
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10/27/2004
22:09:16
| RE: 5.9 or 4.7
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In a 4X4 QC the 5.9 is a good bit better. I have a 01 QC w/5.9 and my dad has the 02 QC w/4.7.
He gets slightly better fuel mileage, but you go up anygrade and it has to downshift.
There really isn't any comparison when equipped identically.
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tom
Dodge Dakota
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10/28/2004
16:43:53
| RE: 5.9 or 4.7
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I am looking at a 99 5.9 w/46000k adult driven. My goal will be to build the vehicle into one hell of a machine. what are some recommendations I should consider? I was thinking starting with super charger and tuned exhaust. thanks
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Kowalski
GenIII
10/28/2004
18:25:46
|  RE: 5.9 or 4.7
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FDdakotaRD - it is the grind of the cam, not the location of the cam in the motor that determines the torque and hp characteristics of the motor. There is nothing about the pushrod design that gives it a torque advantage.
Lead, follow, or get out of the way
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fastyz400
Dodge Dakota
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10/28/2004
18:29:48
| RE: 5.9 or 4.7
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tom,
My first suggestion is to beefen up the crappy 46RE Transmission. They are prone to failure at 50-65k. So, get a heavy duty torque convetor and trans, before you start with all your power adder.
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FDdakotaRT
Dodge Dakota
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11/01/2004
18:12:49
| RE: 5.9 or 4.7
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Kowalski your right the grind in overhead cam motors along with the heads which in most cases are usually multivalve were designed to make most of its power at higher RPMs unlike the 5.9 and other pushrod motors which are a little more restrictive thus helping it make better low end grunt.
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DakotaOwner01
Dodge Dakota
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11/01/2004
20:36:11
| RE: 5.9 or 4.7
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My dad has the 4.7 I have the 5.2 his seems to be a little nicer but not a big enough difference to make me sell my truck early just for the 4.7. Who knows with the hemi thought :0
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Kowalski
GenIII
11/02/2004
16:55:36
|  RE: 5.9 or 4.7
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FDdakotaRT - you're making generalizations about all overhead cam engines that sound like they're based on your experience with smaller engines. The 4.7 and 5.9 both use 2 valve heads. The 5.9's extra grunt comes mainly from its extra displacement; not from restrictive heads.
Lead, follow, or get out of the way
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you
Dodge Dakota
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11/03/2004
00:34:39
| RE: 5.9 or 4.7
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dont forget you asses that the 5.9 is heavier by far because it is solid steel and will suck more gas than a desperate hooker.
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Viper3431
Dodge Dakota
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11/03/2004
10:55:16
| RE: 5.9 or 4.7
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My friend has a 4.7 in his dakota ext cad 4x4, slightly modded. It does very well in the truck but if you plan to haul anything i'd suggest the 5.9 instead. My dad has a 5.9 and there's no doubt it has more power and potential. If you're getting a V8 anyway you know the gas mileage will suck on all of them, what's an extra mile or two less? I have a modded 5.2 (intake, exst, headers, tbody spcr,k&n intake sys) in my 99 dakota however that will take both of the above trucks on the highway without problems. All mentioned vehicles are 4x4, ext. cab autos.
Move it or build a roof over it.
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