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Old 06-16-2012, 03:40 PM
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HemiLonestar HemiLonestar is offline
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Join Date: Nov 2009
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Vehicle: 2003 Dodge Ram 1500 QC
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Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
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Quote:
Originally Posted by douce View Post
yo i got an '05 4.7L 4x4 with the 6spd manual quad cab. i'm lookin to do some work when i get back from my tour in iraq. I was told by local dodge dealer that the viper engine would mount right up to my 6spd manual. does anyone know if that is true? or does anyone know if the 6.1L hemi would mount up. lookin to do anything to get more from my truck, preciate it.
Putting in an SRT-10 engine in that truck would be a royal PITA, not impossible but would suck for a while to make it all work right, especially with a 4x4. The 6.1 will definitely bolt to your trans and into your truck. Your original 5.7 manifolds will not work well, the exhaust ports are different, either headers or possibly the SRT8 manifolds from a Grand Cherokee (these fit into 4th gens, don't think anyone has tried it with a 3rd gen). Cannot use the LX manifold. Also you will need to modify your front timing cover and accessory drive to fit the 6.1 intake manifold & TB, as they stick out the front. This also requires installation of an electric fan to get rid of the original clutch fan. Then you're on to custom tuning.


Quote:
Originally Posted by cdiddy602 View Post
well i blew my 4.7 in my 03 and i found an engine from an 08 so , my question is what modifcations do i need to do to make this engine run proper??? please help!!! and does the tranny bolt up!! its an automatic
The 03 has PCI bus computers and harness, 08 is CANbus; these are not compatible with each other. It will physically bolt in, however you will need to ensure that the tone wheel on the 08 crank is the same as your 03, most likely have to disable or plug the 2nd set of plugs unless you can find a way to adapt them into the harness, get a TB adapter to use your cable driven TB on the fly-by-wire 08 manifold. You will need to reuse your original engine's sensors and sending units. If the tone wheel is different, you have to pull the crank in order to change it. This may or may not be more trouble than it's worth for you.
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Last edited by HemiLonestar; 06-16-2012 at 03:45 PM.
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