Dodge Dakota ForumDodge Dakota PhotosDodgeDakota.net Membership
  Forums   Forum Tools
08:14:34 - 11/28/2014

Dakota Performance
FromMessage
gsmarquis
Dodge Dakota
JOIN HERE
 Email

7/09/2003
18:41:48

Subject: 01 dodge 4.7 v.s. jeep 4.7 HO
IP: Logged

Message:
Are there any other differences from the 4.7 and the 4.7 HO
other than CAMS, INTAKE MANIFOLD, and COMPUTER
PROGRAM? I guess what i am asking is there any chance of
changing these parts and also the comp flash to gain
almost the same 270hp.

I already did the HO cams and i am looking for more.



hardbody
Dodge Dakota
JOIN HERE
 Email

7/09/2003
18:50:14

RE: 01 dodge 4.7 v.s. jeep 4.7 HO
IP: Logged

Message:
yes their are more things different, if you do a search you may find an old post I replied to where I listed all the differences, I can't remember them all off hand. A tech at dodge gave me a training booklet that he received and it tells all the differences. Some parts ARE NOT interchangeable. If you can't find the old post I'll look for the booklet and anwser your ? in more depth.



Ian
Dodge Dakota
JOIN HERE


7/09/2003
20:16:51

RE: 01 dodge 4.7 v.s. jeep 4.7 HO
IP: Logged

Message:
h.o. cams + kennebell flash = about 28 horsepower add a drop in k&n for 2 more horsies and bam you at 30.



4.7 vs 4.7HO
Dodge Dakota
JOIN HERE


7/09/2003
20:29:31

RE: 01 dodge 4.7 v.s. jeep 4.7 HO
IP: Logged

Message:
http://www.wjjeeps.com/engine.htm



Demon Dakota
DakotaEnthusiast
 Email User Profile


7/10/2003
13:02:15

RE: 01 dodge 4.7 v.s. jeep 4.7 HO
IP: Logged

Message:
pistons, crank, rods (IIRC), intake, ECU, cams, springs/retainers, heads, maybe exhaust manifolds (can't recall at the moment). I think those are the major differences (off the top of my head).

K&N Drop in AF (CAI during summer months)
True Dual exhaust and removed third cat
HO Cams & HO Intake
FASTMAN 70mm TB
Autolite 3923 Plugs
TPS @ .76 VDC
IAT Adjuster Mod
14.52@94.2 MPH at Silver Dollar Raceway

McyMike
Dodge Dakota
JOIN HERE


7/11/2003
08:00:04

RE: 01 dodge 4.7 v.s. jeep 4.7 HO
IP: Logged

Message:
There is still a difference....My stock 2000 Jeep Grand Cherokee would EAT my 2003 4.7 Dak (with HO cams) alive to about 60. I think the magazines said the Grand Cherokee was one of the fastest SUV to 60 (around 6.7 sec) with exception of some of the new high $$$ Beemer and Porsche. There is a big difference in the way it pulls and makes power - very smooth. Why and how?? ...I don't know.



Azz
Dodge Dakota
JOIN HERE


7/11/2003
12:28:48

RE: 01 dodge 4.7 v.s. jeep 4.7 HO
IP: Logged

Message:
4.7 liter V-8 (287 cu in., 235 bhp)
The all-new 4.7-liter V-8 engine offers more power, less weight (438 lbs), increased fuel efficiency and lower emissions than the 5.2-liter engine it replaced.


4.7 liter V-8 HO (287 cu in., 265 bhp)
A High Output version of the 4.7L was introduced starting with the 2002 model year. The modifications (listed below) added 30 bhp and 30 FT-LB of additional torque. The HO engine is designed to run perfectly on standard octane fuel, but for maximum performance premium fuel is recommended.

The HO engine is standard on all Overland models, and is optional on the 4WD Limited and the 2004 Freedom Edition (approx. $890 MSRP). It has not been available on the Laredo, Laredo Sport or Special Edition models. All 2002 models with the HO engine featured a nice custom chrome exhaust tip. This was, unfortunately, decontented starting with 2003 model year production.




Summary of HO engine feature differences


1. Camshaft - custom profile lobes (designed for increased performance)

2. Connecting rods - modified, with floating wrist pins (vs pressed-fit pins in standard V8)

3. Crankshaft - forged steel (vs cast iron in standard V8) 11. Main bearings - tri-metal (vs bi-metal in standard V8, designed specifically for the HO engine)

4. Crankshaft damper - unique to HO 12. PCM calibration - unique programming

5. Cylinder heads - different shaped combustion chambers (for improved airflow) 13. Pistons - dome shaped for increased compression ratio

6. Exhaust tip - chrome (2002 models only, decontented for 2003 models. Available only as a one-piece assembly with muffler) 14. Spark plugs - platinum tipped

7. Fuel injectors - higher flow (+3.3 lb/hr) 15. Valves - unique exhaust valves (same lift as standard V8)

8. Intake manifold - modified (shorter runners)

9. Intake - low-restriction intake system (different resonator, air filter, air filter hose and housing)

10. Knock sensors - two, stereo

11. Main bearings - tri-metal (vs bi-metal in standard V8, designed specifically for the HO engine)

12. PCM calibration - unique programming

13. Pistons - dome shaped for increased compression ratio

14. Spark plugs - platinum tipped

15. Valves - unique exhaust valves (same lift as standard V8)

16. Valve springs - upgraded valve springs (intake & exhaust. Larger diameter wire and more coils)









Chris
Dodge Dakota
JOIN HERE
 Email

7/11/2003
12:43:03

RE: 01 dodge 4.7 v.s. jeep 4.7 HO
IP: Logged

Message:
All good info in the last post.. BUT the ho was around in 2001. I bought the HO parts for a 2001 last summer to put in my 2000 dakota... so if the HO goes older than that I am not sure but there at least is a 2001 model...

As for the GC and how it accelerates.. it really does scream for a factory set-up (with an auto at that)... We love ours...

Chris



01Motorsport
Dodge Dakota
JOIN HERE


7/11/2003
17:29:52

RE: 01 dodge 4.7 v.s. jeep 4.7 HO
IP: Logged

Message:
I believe the stock 4.7 pistons are 9.0:1 compression, the HO is 9.7:1.



Ahmad
Dodge Dakota
JOIN HERE
 Email

11/14/2010
18:16:06

RE: 01 dodge 4.7 v.s. jeep 4.7 HO
IP: Logged

Message:
Hi , what is meeing of HO ?



hardbody
Dodge Dakota
JOIN HERE


11/14/2010
18:39:19

RE: 01 dodge 4.7 v.s. jeep 4.7 HO
IP: Logged

Message:
HO = High Output



Pimp
Dodge Dakota
JOIN HERE


11/14/2010
21:35:08

RE: 01 dodge 4.7 v.s. jeep 4.7 HO
IP: Logged

Message:
Man yous dont know what a ho is?



manny
Dodge Dakota
JOIN HERE
 Email

5/12/2012
12:56:26

RE: 01 dodge 4.7 v.s. jeep 4.7 HO
IP: Logged

Message:
does anyone know if a 2005 4.7 would fit a 2000 4.7 engine? anything that can get switched over



   P 1


Post a reply to this message:

Username Registration: Optional
All visitors are allowed to post messages


Name:
Email:
Notify me when I get a reply to my message:Yes  No

Icons:            

          

Subject:
Message:
 



Home | Forums | Members | Pictures | Contact Us

This site is in no way affiliated with Chrysler or any of its subsidiaries.