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Custom Dodge Ram Performance Mods - Engine - 4.7 Liter V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 4.7-liter V8 engine - 310 horsepower, 330 lb-ft of torque.


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  #1  
Old 09-26-2010, 09:11 PM
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Default Engine swaps?

Realizing there just isnt much support for the 4.7 for big hp gains. I have a 2004 with the 5.7 hemi but i plan to keep it for a daily plus its gold so i dont really have many custom options for it so i was wondering.... what engine swaps are possible in the 2006-up rams? i have heard once of one with a 6.1L hemi swapped into it. what else is able to go in?
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Old 09-26-2010, 09:14 PM
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Almost anything that will fit. Any of the HEMI aftermarket crate motors that are carbed are perfect. The biggest issue is PCM & harness compatibility.
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Old 09-26-2010, 09:32 PM
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well i found a place that sells the crate engines and also makes the harnesses and have stand alone systems ready for install.. just the prices since they are brand new. 10-18k dollars or 3k and build up a block yourself. there is one i was really drawn to. the 426 hemi crate based off the 6.1 hemi. since its based off the 6.1 would i be able to use the 5.7 mounts or do they make 6.1 mounts for the rams?
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Old 09-27-2010, 11:41 PM
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The 6.1L is the same as the 5.7L externally... So its a bolt in just like the 5.7L is.

You can install the 5.7L into your engine bay and use your 4.7L sensors, harness and OCM to run it. You will need the 5.7L cable throttle body used on the crate engines. You will also need an SCT custom tune in order to get it tuned right.

Currently there is a 2006 Ram that was originally a 4.7L... he swapped in a 5.7L and is now runing low 8's in the 1/8 mile. So it can be done and it has been done...

NICK
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Old 09-29-2010, 10:23 AM
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really? they use the same wiring and everythin? so if externally the 5.7 and 6.1 ar the same whats diff internally cuz i seen a stroker kit that used the 6.1 and made it into a 7.2 426 hemi?
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Old 09-29-2010, 10:52 AM
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well i geuss maybe they are pretty much the same bc now the place says turn ur 5.7 or 6.1 hemi into a 7.2 426hemi!
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Old 09-30-2010, 08:51 PM
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Nick u wouldnt happen to know the guy runnin a 5.7 swap wit 4.7 harness do u? i would like to ask how he did it all
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