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2007 Dodge Ram 07 to 03 HEMI swap?

Tiny
ALAN JAHNER
  • MEMBER
  • 2007 DODGE RAM
Engine Mechanical problem
2007 Dodge Ram V8 Four Wheel Drive Automatic

I have a 2007 5.7 ltr hemi the moter is done. I have a 2003 5.7 ltr hemi that I want to put in it. The question I have is The 07 has a EGR valve and the o3 im going to use douse not. Can I put that moter in and not plug the EGR wire into anything and will the truck run properly without it? I was told by dodge mech that the moter will work but I never noticed the EGR valve till I payed for the 03 and brought it home!
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Friday, October 9th, 2009 AT 9:19 PM

4 Replies

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
It will bolt in and it may even start but you will have a check engine light on that will not be able to be shut off. So if you live in a state where you have to have it smogged it will NEVER pass. You should use the 07 intake so you can use the 07 injection and the EGR, this should fix that problem.
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Saturday, October 10th, 2009 AT 9:01 AM
Tiny
ALAN JAHNER
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Hay thank you for your reply. I was going to use the o7 intake and put the EGR valve on the 03 but the 03 douse not have the holes in the cylinder head to mount it or for opperation. I don't know what to do anymore that truck has been a lemmon from the day I bought it.
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Saturday, October 10th, 2009 AT 9:25 AM
Tiny
RACEFAN966
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Well if the heads are in good shape on the 07 the I would swap heads too. Sounds like you have had a rough time with this one sorry.
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Monday, October 12th, 2009 AT 2:02 PM
Tiny
RACEFAN966
  • MECHANIC
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So how are things going with the swap?
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Wednesday, October 21st, 2009 AT 10:18 AM

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