Injector cupless lb7 heads!!

[tractor]

Nice work David.
Darryl

 

[cafryer]

can you pm me a price on this and port and polish with springs.

 

[TeaBagger2006]

do the cups have anything to do with injector failures on lb7's???

 

[TrentNell]

They look good David , had i known when we talked last i had a few more weeks to run the truck i would have probably sent mine out to you to be done , oh well another build will be taking place over the winter.

 

[meanmachine]

Subscribed...

 

[ecc_33]

How long have these been tested David? I wonder how they will hold up with heat cycles? Are they made out of the same alumn. as the head or something different? Buck has been running something very similiar for a couple years now. IIRC Steve Cole "that was painfull" Talked about this a long time ago and was a part of there "cupless heads" At least thats what ive heard

 

[Diesel Technology Source]

They look good David , had i known when we talked last i had a few more weeks to run the truck i would have probably sent mine out to you to be done , oh well another build will be taking place over the winter.

Ill have a set ready when you need them. I have a few core sets now so when you are ready it will only be a few days.

 

[Diesel Technology Source]

How long have these been tested David? I wonder how they will hold up with heat cycles? Are they made out of the same alumn. as the head or something different? Buck has been running something very similiar for a couple years now. IIRC Steve Cole "that was painfull" Talked about this a long time ago and was a part of there "cupless heads" At least thats what ive heard

1. They have been tested since the lly came out in 04.5
2. They will hold up same as the head they are now part of.
3. different aluminum. (better)
4. As for Buck I dont know never talked to him so wouldn't know about his heads.

 

[Diesel Technology Source]

No one is above a cup failure. Stock trucks are rare unless you have done injector work. There is a greater chance then but when fixed right they should never lift again. Keep in mind people wanting to do it just to have the best of the best that it's 1450 plus 40 hours of your life pulling the heads and replacing your gaskets. Depending which cup you lifted could be a few bucks in loctite and at most 6-8 hours.

My puller has had more than it's fair share. That's why we are in the process of a similar route. Currently waiting on my slugs and time and motivation to pull the heads. I just don't see where the $1450 comes from. Seems to be about double what it should cost but then again that is the world we have allowed to be created here. Your first set has a lot of r&d sure.

Kudos to you guys for doing it. I will post some pics of mine when done and the processes we used as well. I tend to agree with Simon though that this is more of an extreme procedure for the high hp guys.

I dissagree with your statment entirely. The labor alone in intense to get this complete. Also keep in mind there is more work done to these than just the cups
1. cup upgrade
2. precision surface
3. valvejob
4. new valve seals

And you can agree that most all the lb7's running today have had atleast one set of injectors.
Also this is just another option as you build your engine. Not recomendation to pull your heads and have it done just to do it.

One more thing isnt this site mostly for those of us who have or are after EXTREME hp??

 

[rcr1978]

So is all 4 things you listed in the price included?

 

[Diesel Technology Source]

Yes, when you get them back they are ready to bolt on.

 

[rcr1978]

What's included in the valve job? What if the heads need new guides?

 

[Diesel Technology Source]

Then the guides will be replaced at the price of $15 each

 

[Diesel Technology Source]

The valve job includes. multi angle surface on the seat's and the valves lapping of the valves. Then pressure check each one to ensure a perfect seal.

 

[rcr1978]

Ok thanks for your reply I just wanted to be clear on whats included. Do you maintain factory valve height also?

 

[Diesel Technology Source]

depends on the surface if we can clean it up with just a .001 thats what we'll do. Then if it takes more to clean up the valves they will be a bit lower.

 

[Diesel Technology Source]

Of course you disagree with me. You are trying to justify your price and I don't see it being that high. I think it's great you are offering it and I'll leave it at that.

Most lb7 trucks have probably had injectors but this is not a must IMO. Yes we are all enthusiasts here but the majority of guys on this site don't need to go to this extreme. Most don't need head studs. You want cheap insurance, pull all 8 cups when you do an injector job and the problem is solved for the vast majority. I'd be willing to bet the highest failure time and rate is for the guy who just replaced the injectors only and one lifted as soon as it was put back together. and it's frustrating. I've been there. Some of this thread is just misleading that every lb7 owner should consider this.

How long have these heads actually been run? We are not talking about factory Lly heads here. Same theory I understand but custom vs oem.

Why did isuzu determine in 04.5 that the cups were no longer needed at stock power levels? THIS IS FOR PEOPLE WHO WANT IT AND HAVE THE MONEY FOR A QUALITY SERVICE NOT SOME BACK YARD GUY WITH A WELDING ROD IN A POLE BARN.

 

[blackdirtymax]

really have we got to start name calling ???

 

[JoshH]

I'm closing this for just a little bit before it gets out of hand. It will be opened back up very soon.

 

[JoshH]

Ok guys. This is opened back up. Please remember this is DTS's area for advertising new products and specials.