LS engines go to 300k easy before even thinking about a rebuild.
CK5
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LS LQ 9 ( from a 2002 Escalade)-- what we need from the donor truck to install into our 1988 K5
- Thread starter riv1973
- Start date
You can tune the stock computer and use a cam and headers, that is not a problem for the factory computer depending on the cam.
You just need to weigh the cost of that vs an aftermarket computer.
Will you modify it anymore down the road? Future upgrades? Do you want to run a MAF sensor or eliminate it? The list goes on...
You just need to weigh the cost of that vs an aftermarket computer.
Will you modify it anymore down the road? Future upgrades? Do you want to run a MAF sensor or eliminate it? The list goes on...
As long as they haven't been neglected. If someone ran it too long when the oil pump pick-up tube O ring got weak, it can beat on things.
I would check cam bearings, replace if necessary and slap a cam into it if wanting a little more. Which would push towards the aftermarket harness and ECM as Heath suggests, in my opinion.
the car looks pretty grimy. i have to have the heads looked at. there are several broken bolts and i think i am going to have a machine shop remove them and possibly rebuild the heads. so i will have the engine inspected at that time.
They all, break exhaust manifold bolts
another question,
how do you shift the 4L60E when it is in the blazer? what type of linkage?
john
how do you shift the 4L60E when it is in the blazer? what type of linkage?
john
Stock shift linkage works or use the lokar linkage set up, you dont need the electronic part on the driver side of the transmission thats on the shift rod just the shifter bracket
awesome thanks!
john
john
Would you explain this please?
If not using the gear selection switch, how does the computer know what gear it is in, or if it is in any gear?
I don't know how it would know when to engage the TCC and several other functions.
There is a pressure switch manifold inside the transmission that the ECU can read to know what gear you put it in.
I think the black box on the shift shaft is for the chassis computer or diagnostic comparison or something, but I am not really sure on that black box.
Older trans did not have that black box and functioned just fine.
I think the black box on the shift shaft is for the chassis computer or diagnostic comparison or something, but I am not really sure on that black box.
Older trans did not have that black box and functioned just fine.
the black box on the shift rod is removed and the harness usually is thinned out to not need it. every LS harness I have seen does not have the black box connector as part of the harness, the round connector for the transmission gives the pcm all the information it needs
It will also require a pcm setting change.
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hey all! another question
i have been researching the Holley Terminator X max set up. i am going to talk to them but i was wondering about something. i am going to buy a engine test stand and would this computer system work on the engine test stand? could i run the motor and such while it is on the test stand and have the holley system function?
also does this work with a mostly stock set up ( we are going to have the heads rebuuilt and then run the stock motor to start with and then in the future upgrade it. the motor will be fully inspected to make sure it is in good shape prior to us using it.
i have been researching the Holley Terminator X max set up. i am going to talk to them but i was wondering about something. i am going to buy a engine test stand and would this computer system work on the engine test stand? could i run the motor and such while it is on the test stand and have the holley system function?
also does this work with a mostly stock set up ( we are going to have the heads rebuuilt and then run the stock motor to start with and then in the future upgrade it. the motor will be fully inspected to make sure it is in good shape prior to us using it.
The Holley system will work with anything from stock to a complete boosted race engine and anything in between. That's the main benefit of it is you can make changes to the engine or even a different engine sometimes and easily handle it with the Holley.
I would be glad to help you pick out a Holley System if that is what you are after, I stock some of them, but I can't stock every model with every option for injector, ignition, DBW, etc.
Yes it would work on a test stand as long as you have a battery and high pressure fuel pump to supply the fuel, and ideally a way to keep the battery charged. And of course you need a cooling system.
I would just use the truck as the test stand.
I would be glad to help you pick out a Holley System if that is what you are after, I stock some of them, but I can't stock every model with every option for injector, ignition, DBW, etc.
Yes it would work on a test stand as long as you have a battery and high pressure fuel pump to supply the fuel, and ideally a way to keep the battery charged. And of course you need a cooling system.
I would just use the truck as the test stand.
thanks man!
i will reach out to you when the time comes.
i am thinking about an engine test stand only because i wanted to make sure the engine runs and runs well prior to the transplant. it is expensive but i see my son and i using it for years to come. i am still debating the engine test stand. but i think that i am set on the holley system. the plan now is to have the heads rebuilt or at least have the broken exhaust bolts removed) and then get the holley system. then i want to replace the injector and the fuel rails ( the rails are a little corroded on the exposed metal portions about mid way along the drivers side and passenger side rails) and then get it running well. i would like to remove the heads and then have my mechanic inspect the motor and bearings to make sure it is all good to go.
once it is running well on the stand and all the gaskets and such are replaced, then i can plan on the exchange this winter.
i will reach out to you when the time comes.
i am thinking about an engine test stand only because i wanted to make sure the engine runs and runs well prior to the transplant. it is expensive but i see my son and i using it for years to come. i am still debating the engine test stand. but i think that i am set on the holley system. the plan now is to have the heads rebuilt or at least have the broken exhaust bolts removed) and then get the holley system. then i want to replace the injector and the fuel rails ( the rails are a little corroded on the exposed metal portions about mid way along the drivers side and passenger side rails) and then get it running well. i would like to remove the heads and then have my mechanic inspect the motor and bearings to make sure it is all good to go.
once it is running well on the stand and all the gaskets and such are replaced, then i can plan on the exchange this winter.
Of course the stock PCM can also handle lots of engine changes, as long as somebody has studied the system and learned HPTuners or EFI Live. You can even integrate a 3-Bar MAP sensor for big boost. It's around $500 to get setup for yourself. It's only when going to radical setups the stock PCM can't handle it and you have to go for the high-$$ aftermarket stuff that isn't properly validated like OEM stuff. It's great to have parts available everywhere.
Yes, that is correct, if you have the time. I just don't have time to tune with the stock ECU when the aftermarket ECU can be tuned live while the engine is running and see the results immediately, and these days does it by itself most of the time, and it is definitely more versatile than the stock ECU. Also, the harness comes plug and play for some applications vs hours of depinning, cutting, removing, etc. I use the factory ECU in the factory vehicle, because it's also integrated into other aspects of the vehicle most of the time. Once you remove the engine from the vehicle, I'll take the aftermarket ECU pretty much every time because of the amount of time it saves.
BTW, are you saying you can buy an ECU at the parts store in a pinch? I'll be honest I've never looked. The Holley Terminator system uses all the stock sensors except the 02 sensor, which is from an Audi or something like that. All of the sensors can still be purchased at the parts store if you know what vehicle to look for. In the truck I keep a list of the sensors in the glove box along with what vehicle they came out of.
But with the LS engine it's easier because you just need to know what vehicle you took the engine out of. But with a tuned factory ECU you would still need your laptop and then a new code from HP tuners for the new ECU, then pay more money for a license for the new ECU, it still wouldn't be an easy fix if you lose the ECU. Luckily that's rare.
I guess what I am saying is the ECU and wiring harness are the only thing aftermarket really. Neither of which are easy to change with a tuned stock ECU or an aftermarket one.
Thank you for standing up for of the stock ECU, I always respect your opinion Luke.
off the subject question. where can i find the engine number to deterimine is this is the factory stock engine. and how do i tell if it is the original engine? i know how to in my old buick engines but i am not sure how to do it with this newer engine and truck
