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kicker01
Dodge Dakota
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1/21/2002
10:25:41
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 Subject: 4.7 HO parts to swap
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Has anyone looked into upgrading their regular 4.7's with the 4.7 HO parts? Are the only differences different pistons, different crank, different cams, different PCM? How much would it cost if possible?
'01 RC 4.7 5spd
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Blckdak
GenIII
1/21/2002
14:01:16
|  RE: 4.7 HO parts to swap
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I looked into this! Went to the local Jeep dealer to talk parts and basically what it comes down to is spend $4,000.00 to do this. Its probably cheaper to buy the engine as a whole, I looked on the sticker of a jeep that had it and it was like a $1,800.00 option. I was going to do it cause im in a Automotive program at tech college and I thought it would be a good way to get into an engine, not for 4,000 g's though. Everything is sold Seperatly, no "package" to get the parts.
Erin
2000 CC 4x4 Sport
Magnaflow Exhaust, Z-Tube, Runnin AMSOIL
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CW
GenIII
1/21/2002
14:49:15
|  RE: 4.7 HO parts to swap
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pistons cams and PCM are all you really need the forged crank is for strenght no HP. I will wait for aftermarket cams and a custom PCM worth more HP, cheaper to.
2001 RC 4.7 5sp 9.25" 3.92 LSD
Ported throttle body, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" cold air, Roadmaster active suspention, Removed Third cat. Working on adjustable fuel pressure with return.
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Joel
Dodge Dakota
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1/21/2002
17:12:37
| RE: 4.7 HO parts to swap
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Wow, forged crank? Are the Pistons forged too?
Joel
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CW
GenIII
1/21/2002
19:24:56
| RE: 4.7 HO parts to swap
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pretty sure they are cast just higher compression.
2001 RC 4.7 5sp 9.25" 3.92 LSD
Ported throttle body, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" cold air, Roadmaster active suspention, Removed Third cat. Working on adjustable fuel pressure with return.
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R.L.Stuart
Dodge Dakota
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1/22/2002
14:33:40
| RE: 4.7 HO parts to swap
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This is a list of parts that came in today for my HO upgrade!
Crank 53021407AA
Cam left 53021411AB
Right 53021412AB
PCM 56044811AC
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kicker01
Dodge Dakota
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1/22/2002
16:41:01
| RE: 4.7 HO parts to swap
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hey Stuart, did it cost ya $4K like blkdak said it would? Let us know how much of a gain you got when you install them. THANKS!
'01 RC 4.7 5spd
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Art
Dodge Dakota
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1/22/2002
17:03:32
| RE: 4.7 HO parts to swap
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I would not bother with the crank at all,Ive never had a crank fail in all the engines I`ve ever built and I`ve built some stout 360`s,I just always deburr and chamfer all the sharp edges and are you sure the pistons and the heads and valve springs are the same?
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Joel
Dodge Dakota
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1/22/2002
18:29:40
| RE: 4.7 HO parts to swap
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Would the crank matter if the stroke was different? Or is that done w/different rods?
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CW
GenIII
1/22/2002
19:33:35
| RE: 4.7 HO parts to swap
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The stroke is the same. FYI the bearings for the forged crank are different as well. Forget the forged crank don't need it and costs lots of money. Duners crank is doing fine under 400+ hp. Wait for the aftermarket cams they will be better if not cheaper.
2001 RC 4.7 5sp 9.25" 3.92 LSD
Ported throttle body, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" cold air, Roadmaster active suspention, Removed Third cat. Working on adjustable fuel pressure with return.
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Hersbird
Dodge Dakota
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1/23/2002
00:37:32
| RE: 4.7 HO parts to swap
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I think Stewart is pulling your chains. You can't just drop a Jeep Grand Cherokee PCM in a Dakota can you? And one of the biggest things that make the HO is the higher compression, ya better order those pistons.
The base price difference between a regular 4.7 and the HO on the Jeep is actually over $2600 on the MSRP but the HO comes standard with more stuff then the regular 4.7 limited does. To bad you can't get a stripped down version with the HO, in a 2wd jeep it might be pretty fast and affordable. As it stands, the lowest possible 4.7 HO jeep comes in at $33,350 MSRP, ouch! Compared to a 2002 Dakota Quad cab, Sport plus, with the 4.7 is only $23,350 MSRP. That's exactly a $10000 difference! For a truck with the same basic layout and passenger capability as the Jeep, and similar performance. The Jeep has tons more goodies at that price but even the most loaded out 4x4 Dakota is only a bit over $32,000 MSRP. I like Jeeps, but they don't have the value the Dakota has. If you want the best factory made 4x4's (maybe short of expensive, oversized Hummers) Jeep is your company.
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kota on 20s
GenIII
1/23/2002
00:49:29
| RE: 4.7 HO parts to swap
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i have heard jeeps are crap. my friend has a 89 wrangler and it caught on fire, had to replace the tranny twice and a ton of other things.
in his case jeep means
Just
Empty
Every
Pocket
Eric
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Todd Bouton
Dodge Dakota
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1/23/2002
11:20:42
| RE: 4.7 HO parts to swap
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Who pays MSRP anyway?
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Hersbird
Dodge Dakota
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1/23/2002
12:08:51
| RE: 4.7 HO parts to swap
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As far as MSRP goes, in this case both the Jeep and Dakota have similar rebates and availability so MSRP is a good way to compare the prices. This doesn't work when comparing the Dodge to something like a Toyota as Toyota and Honda will limit their production to create a seeming demand, therefore they don't usually have rebates. Actually the Jeeps may not have rebates now as they have lowered the MSRP across the board on 2002s, so in reality the price difference between a Jeep and a Dodge may be even greater yet.
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Duner
Dodge Dakota
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1/23/2002
12:40:23
| RE: 4.7 HO parts to swap
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It was my understanding that the 4.7 HO would also have different heads. The small exhaust valve and the closed down bowl behind the valve is a limiting factor on the performance potential of the stock 4.7 head. Once some of these 4.7 heads are "worked over" we'll see a whole new level of performance out of them. Maybe the 4.7 HO heads have some of this done already? I also thought that the intake manifold was different between the two, with the HO having shorter runners.
Anyone with access to parts numbers and databases want to check for these?
p/n for Dakota 4.7 heads vs Jeep 4.7 HO heads
p/n for Dakota 4.7 exhaust valves vs 4.7 HO exhaust valves
p/n for Dakota 4.7 intake valves vs 4.7 HO intake valves
valve springs and rocker arms?
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R.L Stuart
Dodge Dakota
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1/23/2002
17:38:47
| RE: 4.7 HO parts to swap
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Hersbird your right you can't put a jeep PCM in a dodge but we can set it up for the stock overland HO and pull the codes from it,Got to start from some point,The pistons are dome and were still waiting for them with the pins and rings as for the crank in going to use the stock 4.7 crank can't get the damper for the HO crank it's internal balance,for the heads Marty ar KRC will do them along with headers,Talked to B&G in Warren today about a custom flash for the engine and he can do it in three months by that time I may have all the parts,Next we work on the Trans!
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CW
GenIII
1/23/2002
19:57:14
| RE: 4.7 HO parts to swap
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Are you sure those pistons will work with the stock 4.7 head. They probably changes the combustion chamber shape as well as port design.
2001 RC 4.7 5sp 9.25" 3.92 LSD
Ported throttle body, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" cold air, Roadmaster active suspention, Removed Third cat. Working on adjustable fuel pressure with return.
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Art
Dodge Dakota
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1/24/2002
03:40:58
| RE: 4.7 HO parts to swap
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LOL OMG all that for what????? a lousy 30 hp gimme a break man,you have no clue bud,add up your bills and your gonna sh*t your pants and your custom flash wont even work right,I guarantee you,next the trans??? wtf
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Darcy
Dodge Dakota
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1/27/2002
12:29:32
| RE: 4.7 HO parts to swap
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Check this out if you want to know about the 4.7
http://dodgeram.org/tech/gas/Cammer/4_7_v8.html
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Joe
Dodge Dakota
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1/03/2004
09:51:20
| RE: 4.7 HO parts to swap
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All I can ask is why?? If you want powerstroke power buy a superduty...If you want to go fast buy a bike...Why not just buy a supercharger kit (since you have fairly low compression)..Id bolt on a 50 horse shot of nos and try for blowin that junk mopar up if it were me. -JoE
-97 f350 psd 4x4, 89 Shelby daytona, 92 toy 4x4, 90 kawasaki zx11
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Kowalski
Dodge Dakota
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1/03/2004
10:10:13
| RE: 4.7 HO parts to swap
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Joe - allow me to ask you why too. Why did you dredge up this 2 year old post when it is now common knowledge that most of the torque gain of the HO can be had by just changing the cams ?
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