Swapping early style hpop to later
#21
#22
yes. but you will need to swap the branch tubes while the engine is out. it will require pulling the heads and rear cover and swapping them. once swapped the hpop's will swap right out. you will need the hpop cover and if you will look at the cover it only has the ipr valve in the cover the icp valve has been relocated to the front passenger side hpo rail. so it will take a little parts swapping but if the engine is out of the truck i highly recommend it. any time from this point on i am going to recommend just making the swap if i have the engine out and heads off for any reason. the last truck i swapped the pump on is loving it. says it is starting better than it ever has and seems to have alot more response when he is running his tunes i'm not driving the truck so i don't know just going off of customer feedback.
If I ever get around to doing this, I would certainly mention this to a tune writer. Sorry, MDUB, "tuner" sounds like a punk kid in a Honda that needs to pull his pants up.
Info like this is why I enjoy this forum so much.
#23
Hi Jim, got that baby all hooked in. It was awesome- we removed the rear cover like you said put in the06 branch tubes and the06 hpop fitted in like a baby. Now my next question- are those dowel pins that go through those branch tubes?
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Another quick question. Should i put the 2006 heads on the 2004 block or should I use the 2004 heads? I'm in the middle of putting this engine together and its my first time so I need all your help.
Thanks in advance
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Another quick question. Should i put the 2006 heads on the 2004 block or should I use the 2004 heads? I'm in the middle of putting this engine together and its my first time so I need all your help.
Thanks in advance
Last edited by riazoo; 03-06-2012 at 07:31 PM. Reason: Automerged Doublepost
#25
#27
Jim, This advice is worth a million! if you're ever in my neck of the woods the limo ride is on me! I'll be tearing into the engine tomorrow and after I get the 06 heads cleaned, fluxed and pressure tested - i'll let you know my progress and for a first timer there are going to be a lot of crazy questions posted along the way. Thanks for all your time and effort.
#28
To put the 06 heads on, you need to know if they're 18mm or 20mm, if they're 20mm heads going on to the 18mm block, you'll need the correct gaskets (you can order 18mm or 20mm gaskets, and the adapters come with the gaskets now), you'll also need the rocker boxes and injector hold downs for the corresponding heads, they're all different.
#29
I'm going with the 06 heads on the 04 block. As soon as I get a clean report I'll be posting the pics and the steps being taken. Somewhere in this forum it was mentioned that the glow plugs cannot be interchanged because of a length issue and that they will impact a piston. I am not clear as to how that would happen. The glow plugs from the 04 and the 06 were the same length.
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Got word from the machine shop and looks like my 06 heads are both toast. The exhaust valves were cracked all the way through - that was a bummer. So I'm going to give them the 04 heads and see what the report on that one is. I have sent the 06 injectors and 06 turbo in for a check. The injectors will be tested for $50 each and if they are not found to be at spec they will swap them out for reman ones, which I thought is a pretty good deal. Will keep you all posted
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Got word from the machine shop and looks like my 06 heads are both toast. The exhaust valves were cracked all the way through - that was a bummer. So I'm going to give them the 04 heads and see what the report on that one is. I have sent the 06 injectors and 06 turbo in for a check. The injectors will be tested for $50 each and if they are not found to be at spec they will swap them out for reman ones, which I thought is a pretty good deal. Will keep you all posted
Last edited by riazoo; 03-08-2012 at 10:23 AM. Reason: Automerged Doublepost
#30
The glow plugs were probably the same length because you probably have the older heads, just like on my 06. They didn't go to the 20mm heads until mid-06. My build date was 11/05. The newer stuff is all different.
Who and where did you send the injectors? What is it they're checking for? I'd be REAL leery of reman injectors FYI.... nothing but horror stories.
Who and where did you send the injectors? What is it they're checking for? I'd be REAL leery of reman injectors FYI.... nothing but horror stories.