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09:14:47 - 04/19/2024
Dakota Performance
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Beev
Dodge Dakota
11/28/2001
17:33:04
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 Subject: 2002 4.7
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Message:
I am considering buying a new cc 4x4 with the 4.7l, but now i see that the Grand Cherokees are getting a H.O. version- anybody know the details to what they did to it? or if they will be offering it in the Dakota anytime soon?
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Bruce P
Dodge Dakota
11/28/2001
20:05:29
| RE: 2002 4.7
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The HO version has INTERNAL engine mods. (conn rods, cams ...etc)
Ho word about availability in Dak yet... Perhaps will replace the ol' 360ci engine in the R/T?
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hardbody
Dodge Dakota
11/28/2001
21:08:27
| RE: 2002 4.7
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I was wondering the same exact thing when I first saw of the HO 4.7, one of the mechanics at my local dodge dealer gave me a training booklet on the HO 4.7 it explains all the differences, Here's what I got out of that booklet:HO has a forged steel crankshaft, (4.7 is cast iron), crankshaft damper is unique to the HO and can not be used on any other motor, main bearings are designed just for the HO, HO has pistons that are dome shaped, which raises the compression ratio up to 9.7 to 1, HO has a floating wrist pin connecting the pistons to the rods, ( 4.7 has pressed fit pins), HO has unique cylinder heads that use a different shape for the combustion chambers, which improves air flow, HO has a low-restriction air intake system,HO has different cams, , exhaust valves, and all the valve springs are unique to the HO,and cannot be used in the regular 4.7, spark plugs are platinum tipped, 2 extra knock sensors located under the intake manifold, HO has a unique PCM calibration and also premium fuel is recommended. Well thats about it, sorry so long
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Jeffster
Dodge Dakota
11/28/2001
21:26:49
| RE: 2002 4.7
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Message:
With all those mod's to the engine you would think it would have more than just 35 extra ponies.
Is the crank interchangable?
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hardbody
Dodge Dakota
11/28/2001
22:05:17
| RE: 2002 4.7
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Message:
It didn't specifically say, but I assume because the bearings are different that it may not be.
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