S oI made a deal on the engine in Pincher Creek, going to go get it tommorrow. Its complete but from a auto truck. Late year build so I'm hoping its an HO but if not no biggie.

Are the turbos different from auto to 6spds? If so which should I use? The one coming has WAY less km than mine.

 

Clay, buddy..

You gotta stop starting new threads for your truck project!!
Just keep posting on the same thread!!


Did you find out what was wrong with the #6 cylinder in your original engine?

For your new engine, I would confirm it as 305HP HO engine to match your engine before handing over the cash.
Check the valve cover label, glove box tag or the run the VIN of the truck thru a Dodge dealer.
The 03-04 250HP SO engine is quite a bit weaker than a 305HP HO. Also make sure it is not an 04.5 325HP HO. Those are different again.

No difference in the 3rd Gen turbo's between auto's and manuals trannies.

Good luck...Joe

 

Different topics, different threads... Oh well.

Haven't pulled the old motor apart yet but will swappin the thread over to the new engine on Monday.

The deal I'm getting on the engine is a good enough deal that I can live with an SO motor if thats what it turns out to be. From what I understand I can swap my electonics over to it and it will put out the same HP. I know its not built the same on the inside but I won't be racing it.

Thanks for the tip on the turbos.

 

For what you are going to do , if it is a SO, it wont matter to you. The SO was a little weaker in HP and the way that it cooled the pistons, but unless you are planning on 600+ hp, it will be fine. And like you said, once you plug on the edge it wont matter anyways about the lesser hp. A SO will end up at the same HP # as a HO with any kind of programer or box.

Good Score

Kevin

 

GGGRRRR!


I pulled the head today, the top of the #6 piston is all beat and missing chunks! Even worse the new head is all beat up as well and looks to have a bent valve.

Cylinder wall is all scuffed. I'm guessing its like I thought, engine overheated and was shut down hot, something in #6 warped as it heat soaked After I started it up it ran for awhile scuffing the cylinder till pieces of the piston started breaking off and flying around.

Won't be putting that shiny new $2000 cylinder on the new(used) engine. I guess I'll just install it as is. I did pick up a new oil pan gasket and rear main seal, as well as I have SB clutch on order from Peak(thanks for the refferal!).

I'm running down to Pincher creek tomorrow to pick it up. Install the new parts on to it Monday and start installing the engine, finish the installl Tuesday and if lucky drive it to work on Wednesday.

Of course with my luck something will go haywire, I'll lose it and start smashing things with a hammer and by Friday it will be on a flat bed headed for the wrecker.

 

Biggest differnce between them is the top of the pistons and the injectors, so don't try to put newer injectors in an older engine it won't run right, differnt spray pattern. Keep this in mind if your swaping your head to it. oh ya and the timming cover on the newer engine and some extra tabs on it for the fan shroud to bolt to but they can be fabed up really easy some thick sheet metal, a drill and a die grinder can do it. If your swapping your head over you may want to have a machine shop stake in the valve seats, be a good time to fix the biggest weak spot in the cummings

 

Ok so I just got back with the engine. It is definatly an SO. Of well was still a heck of a deal.

What should I keep from my engine? I figure I'll swap over the computer on the side of the block, looks pretty simple. What about the CP3? Any point in swapping that? Turbo, are they same from the SO to HO? How about injectors? My HO injectors have a set of Jammer nozzles on them, if I cann't swap over the injectors can I swap the nozzles?

Also whats with the cam o-ring at the back of the engine? The guy gave me an o-ring for it when I picked up the engine. Guess I better look it up in my manual.

 

There is a difference in turbos between the manual and automatic. Auto's use an HY, spool is slower, but the EGT's are a little cooler. Manuals use the HX, spool is quicker, but EGT's are a little higher compared to the HY.

 

that sounds backwards to me......in the 2nd gen trucks. the autos have the HY and its way smaller housing than the HX in the stick trucks. HY spools faster but hurts egts. HY usually a 9cm3 hotside, HX anywhere from 12-16cm3.

clay sorry to hear about the engine, bummer dude.

 

Are you sure about that? I know they have HE341 and HE351 turbos on the 3rd gens, both electronic and mechanical wastegate. HX and HY were only on the 2nd gens AFAIK.

 

HAHA maybe I better get off the computer and go look at the the tags on those turbos and settle this.

 

Well looks like they are the same, got the same numbers. The exhaust housing has a big '07 stamped on it. Does that mean 7cm exhaust? It looks tiny compared to the 18cm that came on my old 1st gen truck! Both are mechanical WG.

Just out of curisosity would the turbo on my '01 work any better on the '03 or vice-versa?

 

definately do the injectors. The CP3 will be the same, but definately keep the extra one, they are worth some money. Turbos should be the same, I am pretty sure that on the CR's they did not differentiate between auto and standard on the turbos, as they did on the second and 1st gens.

Kevin

 

01 turbo probably won't work, since you can't clock the housing due to the wastegate diaphragm mounted on the compressor housing. The 3rd gen turbo also has a 90 degree discharge compared to that of the 2nd gen discharge.

Kevin, when did they change pistons? Was that from the 03-04 and 04.5+ models, or was it difference between SO and HO motors?

 

Still working on getting the old motor out and then I'll have them side by side to compare, but I noticed a difference....the throttle cable on the truck goes to a setup under the driver's side battery tray, the engine I bought goes to a box above the injection pump. Looks just like the one on my '01 truck with the VP44.