Head replacement, manifold issue

[ken24]

I had a valve seat fall out so I got a list of compatible years of engines and got a couple of heads from the junk yard. They fit good except for the drivers side exhaust manifold. The replacement head has an extra port at the back end. It appears to go down to the crankcase. Would anyone know what that port is for? Am I looking at more mods? Thanks for any info.

 

[Brandon-w]

Sure it's not an egr port?.

 

[Brandon-w]

I'm Thinking you put the passenger side head on the driverside.

 

[ken24]

Here's a pic of the manifolds and the replaced head. I have the original manifold that goes with the head but it would be much easier to use the manifold that went with the trashed head. The port in the head seems dead ended. I'm sure it's a vent of some sort and may be dead ended because of the head gasket.

Anyone have info on what the port is for.

Thank you!

 

[Brandon-w]

It's egr...

 

[Brandon-w]

https://www.google.ca/amp/s/www.jeepforum.com/forum/f67/srt-headers-5-7-egr-notch-3951546/?amp=1

Third post in explains it.
Personally if it were me id use the non egr manifold and call it good

 

[ken24]

Thank you, I'll figure something out!

 

[Brandon-w]

Use the non egr manifold? I mean your engine probly doesn't have the egr anyways. If you just block the hole it won't get feed anyways so you'd be fine. If your in a non emissions place just block it if a code comes up get the tuner to block it for Ya. I hate egr, just making the hemi suck it's own farts and lose power.

 

[ken24]

Yes, I'll do that: block it off and use the non-egr manifold. I'll post if any issues come up.

 

[Thunderoad]

I have a 2003 Ram 5.7 Hemi. Just installed 2007 5.7 Hemi. Made cover plate for egr on head. Do I need to get the manifold from my 03 and change them out? It will start but it has no power. It sounds like it is ******** on the timing.

Sent from my SM-G950U using Tapatalk

 

[Thunderoad]

Engine Swap
03 to 07

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[HemiLonestar]

I have a 2003 Ram 5.7 Hemi. Just installed 2007 5.7 Hemi. Made cover plate for egr on head. Do I need to get the manifold from my 03 and change them out? It will start but it has no power. It sounds like it is ******** on the timing.

Yes, or fab a block off (or buy one) for the manifold. That's why it's running like ****, you have a giant vacuum leak.

Engine Swap
03 to 07

Sent from my SM-G950U using Tapatalk

Was there supposed to be a link or something here....?

 

[ken24]

Egr from what I understand recycles the exhaust gas at lower power to decrease the O2 levels thus decreasing the NOx formation. If the egr valve is stuck you could be getting exhaust gas at higher power demand which would decrease power. I would check the egr valve to make sure it's operating correctly (there are videos on youtube).

Also, when you changed the head did all the timing chains line up per installation guide. I'm not sure on this one but even one tooth out will cause problems, if not disaster (interference engine).

 

[HemiLonestar]

Egr from what I understand recycles the exhaust gas at lower power to decrease the O2 levels thus decreasing the NOx formation. If the egr valve is stuck you could be getting exhaust gas at higher power demand which would decrease power. I would check the egr valve to make sure it's operating correctly (there are videos on youtube).

Also, when you changed the head did all the timing chains line up per installation guide. I'm not sure on this one but even one tooth out will cause problems, if not disaster (interference engine).

Need to read his posts better, he did a slight thread hijack with a hemi EGR question. So there's only one timing chain and it doesn't go up to the head

 

[ken24]

Update: blocked the extra hole and all is good. Thank you for the replies