Common rail head - Competition Diesel.Com

Justappumped24v · 01-05-2017, 04:59 PM

Well I'm in need of head work or just a new head for my 06 common rail daily driver. Just curious being new to common rails what the opinions are. I see d and j sells common rail heads but are they worth it? Anyone else besides Industrial infection do head work trying to get some more cfm outta it. So shops that do heads or places to buy already machines ones and your experience with them would be much appreciated

Sanger · 01-06-2017, 09:54 AM

Mountain high Performance does some good work. I wouldn't run the bigger valves they offer on a 5.9.

CorneliusRox · 01-06-2017, 10:55 AM

Quote:

Originally Posted by Sanger

Mountain high Performance does some good work. I wouldn't run the bigger valves they offer on a 5.9.

x2. Great shop and super knowledgeable.
I'm fairly certain Hamilton has a line that's not officially released but you can PM and purchase right now.

Justappumped24v · 01-06-2017, 03:00 PM

Thanks guys. Why do you suggest not going to the bigger valve though? Clearance problems?

jlbayes · 01-06-2017, 03:03 PM

Valve shrouding.

Justappumped24v · 01-06-2017, 03:11 PM

I'm not familiar with that. Could you explain it for me

CorneliusRox · 01-06-2017, 03:25 PM

Quote:

Originally Posted by Justappumped24v

I'm not familiar with that. Could you explain it for me

The valves are so close together that the air coming in or out gets more turbulent and slower. That's because they're crossing paths and kind of fighting eachother.

I'm not sure I agree it would be a problem for you though.

Mark Nixon · 01-06-2017, 05:41 PM

It's actually because the valves are very close to the cylinders.
I've pulled apart some 5.9's that had bent valves and they wore a nice groove in the top of the cylinder wall.
Pretty close tolerances when you can bend a valve, not break it and have the valve wear a notch into the cylinder.
You'd think they would have felt the thing missing for thousands of miles!

Imagine what a bigger valve would do.

Mark.

Justappumped24v · 01-06-2017, 08:12 PM

Oh gotcha that makes sense. Well sounds like a good way to save money too. Thanks

01-05-2017, 04:59 PM	#1
Justappumped24v Name: Justappumped24v Title: Too Much Time Status: Not Here Join Date: Feb 2016 Location: Illinois Member`s Gallery Posts: 1,311	Common rail head Well I'm in need of head work or just a new head for my 06 common rail daily driver. Just curious being new to common rails what the opinions are. I see d and j sells common rail heads but are they worth it? Anyone else besides Industrial infection do head work trying to get some more cfm outta it. So shops that do heads or places to buy already machines ones and your experience with them would be much appreciated __________________ 05 QCSB24v HTD 6.8L, DDP fueling PDD shifted 2011 MCSB 6.7, built 68rfe

01-06-2017, 03:00 PM	#4
Justappumped24v Name: Justappumped24v Title: Too Much Time Status: Not Here Join Date: Feb 2016 Location: Illinois Member`s Gallery Posts: 1,311	Thanks guys. Why do you suggest not going to the bigger valve though? Clearance problems? __________________ 05 QCSB24v HTD 6.8L, DDP fueling PDD shifted 2011 MCSB 6.7, built 68rfe

01-06-2017, 03:03 PM	#5
jlbayes Name: jlbayes Title: Too Much Time Status: Not Here Join Date: Mar 2011 Location: michigan Member`s Gallery Posts: 2,399	Valve shrouding. __________________ Jacob, 97 rclb

01-06-2017, 03:11 PM	#6
Justappumped24v Name: Justappumped24v Title: Too Much Time Status: Not Here Join Date: Feb 2016 Location: Illinois Member`s Gallery Posts: 1,311	I'm not familiar with that. Could you explain it for me __________________ 05 QCSB24v HTD 6.8L, DDP fueling PDD shifted 2011 MCSB 6.7, built 68rfe

01-06-2017, 05:41 PM	#8
Mark Nixon Name: Mark Nixon Title: No Savior among the flesh Status: Not Here Join Date: Feb 2009 Location: Brownville, Nebraska Member`s Gallery Posts: 8,676	It's actually because the valves are very close to the cylinders. I've pulled apart some 5.9's that had bent valves and they wore a nice groove in the top of the cylinder wall. Pretty close tolerances when you can bend a valve, not break it and have the valve wear a notch into the cylinder. You'd think they would have felt the thing missing for thousands of miles! Imagine what a bigger valve would do. Mark. __________________ If you or I did business like the PEOPLE in government do business, we'd be put in jail. Government is coercive. Anarchy: The state of existence where there are no masters & no slaves. Therefore, Anarchy means the ABSENCE OF SLAVERY, or, in other words, FREEDOM.

01-06-2017, 09:54 AM	#2
Sanger Name: Sanger Title: Too Much Time Status: Not Here Join Date: Dec 2010 Member`s Gallery Posts: 351	Mountain high Performance does some good work. I wouldn't run the bigger valves they offer on a 5.9.

01-06-2017, 08:12 PM	#9
Justappumped24v Name: Justappumped24v Title: Too Much Time Status: Not Here Join Date: Feb 2016 Location: Illinois Member`s Gallery Posts: 1,311	Oh gotcha that makes sense. Well sounds like a good way to save money too. Thanks __________________ 05 QCSB24v HTD 6.8L, DDP fueling PDD shifted 2011 MCSB 6.7, built 68rfe