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finally im about to start my swap i have all parts ready minus fuel filter and lines.
motor just came in today.
i also recently found out that my e67 its not compatible to work with a 4l80e .although the truck came factory with this trany .
I have a question for yall can i make my stock ecm controll the tranny and just use my gmpp ecm to control the motor?
I want to avoid having to buy a new ecm harness and trans controller. any info will be apreciated.
Hmmmmm.... 80e not compatible?
thats what the tuner said that is not compatible with any OS from an e67.
I have put the 4L80E on several E67 computers and not had any issue.
It has more to do with the programming in the Trans computer then the Engine computer.
If you don't mind telling, how much did the ls3 run you?
I think your tuner doesnt know his ass from a hole in the ground. Just my opinion of course.
Wow that motor looks NASTY!!!!
I was just looking at that in the GMPP catalog, good luck with your swap I am sure it will fly!!!
the motor was 6k with shipment,
im going to change rod bolts in it. it also comes with ls9 head gaskets ill probably put a tvs2300 in about a year.
I have gmpp e67 with stand alone harness this will make the engine run, can i make this work with my stock ecm and tranny, and not have to buy a trasmission controller...
i bought an engine stand last week and got the engine fully assembled , im working on a coil relocation bracket its just that this truck coil are to big.
also foud out that i can run a trailblazer ss 2007 OS ,ecm / t42 to make my setup work now I need a way to get a t42 harness and tied into my gmpp harness.
I will call nelson performance to see if they can do that for me.
motor is ready, just waiting on resolving the harness problem to start taking out the 350, I also have this pulley kit for it, which i migth end up selling to start funding for a s/c kit to come.
The engine controller is separate from the tcm. Simply flash a tcm with a 80e flash and run the CAN lines and trans wires. The trailblazer OS has nothing to do with it working. That's the engine side.
We've done a few a few LS3 engine harnesses with the 80e behind it. It'll work.
I need to know the specifics on what u have but it sounds like it shouldn't be a problem.
PM me or ray.
so I've been making some progress , while working on my truck harness i cut by mistake the a/c high pressure cut out switch plug, ( the 1 that goes to the sensor on top of a/c line) its this necessary to have.
i got it figured out guys, what starter should i need with 4l80e trans, flexplate and spacer?
any Gen3 starter should work.
will any gen3 fit good with schoenfeld headers?
so here's a little update. im 99% finish with the swap i was ready to fired up on friday but one of the pw steering fitting i had received earlier on the day was leaking. so for now i have to wait until next week for another to arrive , i just got to installing my dbw pedal today and just need to do a notch to the trans crossmember for the driver side exhaust.
n that should be it for things left to do to get it running
heres some pics of the progress
more pics
i had to relocate the battery to the driver side , im using a nbs cold air intake just had the mass airflow mounting boss welded in
even with the lsx block being iron the truck is sitting about 1" 1/2 higher than before
Beautiful looking engine/truck!
Oh this build is SICK my friend. Good work.
thanks guys. hope it runs as good as it looks.
Is that a Monster Fan setup in there? If so, I had them on my Suburban and liked them A LOT. Worked great, no doubt about it. The only issue I had with them is I had to replace the ground wire after a period of time because it was running too much amperage for the one which was provided. I went back and doubled it which fixed it up. Great looking truck and setup. Lots of great work there :D
:toetap:they are flexalite 280 fan setup they will be controlled by the ecm . i used 1 single 10 gage ground wire for both ill upgrade it if any problems from it.
im just waiting on a pw steering fitting to fire it up , summit said prob thurs or friday
Wow that's a good looking engine and truck! That's gonna be nasty!
i have a question for all of those using schoenfeld headers in their obs. what clamps are ya using to connect the headers with the exhaust ? i dont want to weld to the headers , i bougth some stepped clamps from a local part store but the o2 bung is to far back on the collector. the u bolt clamps will be as bad as weldinng so no option on those .will the single 1'' band clamps work , what are you guys using. this is my last thing to do after i get my pw steering fitting, so hope i can figure this out soon
Out of curiousity are you running AN fittings for the power steering, If so are they RUSSELL brand???
I had the same problem with my PS fittings on my swap, we went through 4 RUSSELL AN fittings on the pressure side before we finally got one that didn't leak, we also bought them at Summit Racing.
Your build is awesome, and the pulley system is absolutely gorgeous!!! I hope you put some kind of a sealer like ZOOPS on them, because they won't stay like that for long.
all of the fittings are russell , the one that was leaking was an earls fitting . i received the russell fitting today the one replacing earls. also im using npt fittings on the pw steering hoses i had some hydraulic hose crimped with some npt fittings then i used an to connect to the pws pump and reservoir. the pulleys look nice but im just not happy with them . ill try to polish them as often i can but i will be looking to sell them.
well i fired it up today it sounds really nice with open headers, im getting the exhaust put on tomorrow so i can let it idle for a while, i just hope all is good on the tune for the transmission .
im using a e67 ecm/t42 tcm LSX 376 with 4l80e the tuner used a 2008 tbss OS to run the engine with a 93octane tune and modified the tcm cal to run the 4l80e. hope its all good.:cowl: this is how ill be if not .
so i got the exhaust put on , its kind of loud at idle.
also im getting some codes p0101 and p0449. do anyone know what can cause this im going to install the new emissions canister that i have , since i just used the stock one and hopefully this will take care of p0449 .
any help on p0101?
Sweet ass engine.
hey guys its been about a year since I did the swap and I'm trying to get my tach to work, at first It work was reading wrong but it work for about a week until we made some adjustment on the tune so that it would work fine. then I changed to a local tuner for better results as far last tweaking.
ok, the setup is e67 /t42 tcm with 08 tbss operating system. we changed the tach signal from pwm to crank and I believe we set the high and low signals to 7. but it will not read any on the tach I tried using a pull up resistor 1k ohm 1/4 watt and it still wont read.
any thoughts?
Which gas pedal did you use?
the gas pedal is for a 08 tbss , I made a bracket that allowed me to bolt it in the stock bolt holes, I changed the pad from my stock pedal since the new one looked funny compared to the brake pedal,