Hey I just got a sierra 1500 donor truck and want to swap my jku, how did you delete them just get a guy to tune it? What did you not need and can get away with
Juan Lopez You have many options. If you are keeping the turbo 350, you need the flexplate spacer.You can also buy a specialty flexplate to adapt LS to old school. If you are using manual trans muncie 4spd., you need the flywheel out of early LS truck manual shift, old school clutch/pressure plate bolts right up, but you will have to enlarge pressure plate holes a tad. You also dont hammer in the throwout bearing all the way, you leave it sticking out of the crank a tad. You can do this wiring system in the video, or if you buy a junkyard motor on ebay and places like that, nowadays they include the wiring harness. You can also do away with this setup and buy the MSD injector kit with fuel rails and brain box, you can also run carb and buy the MSD kit which reads your timing sensors and fires the spark plugs. You can also do away with that and buy the front timing cover kit which spins a SB Ford distributor and have no sensors to go bad on the road. Many choices.* Ebay has a edelbrack manifold kit minus the carburetor with the MSD brain for the spark plugs for around $700.
The thing to think about is those junk yard harnesses are getting old, if you are doing a gen 4 swap you’re probably ok. I used a junkyard harnesses for years but now it is 20 plus years old, the connectors are brittle, some of my fuel injector connectors are broken. 15 years ago hands down i would and did use a junkyard harnesses. I’m now looking to replace my existing swap harnesses,
I have a 2005 gto that was in a fire.. all of the wiring harness are gone. This Car will be strictly a track car only and I wanted to know if I can use this harness as a replacement ? i just need it to start run and have the headlight be operational.
Lol quick question I want to buy this harness but have no clue which one I would need cause on the website it says either 99-02 or 04-08 well I’m taking my ls out of a 2003 Tahoe so which one would I need? Lol
If it is a cable operated throttle body you would need this part: www.speedwaymotors.com/Speedway-1999-2003-Vortec-V8-Wiring-Harness,46373.html. They didn't use the throttle by wire design until 2004, so that is the difference.
Trying to put away 6 L Vortech harness and computer in a 01 short box Chevy 1500 Used to be 4.3 v6 Would like to plug and play but found those harder than that just wondering if you got any tips
@@speedwaymotors i thought that I was buying your harness made by you, and warranted by you, and supported by you,. I purchased it on eBay, and after sending a request and questions about the harness - you now tell me that you don't even make / rewired the harness that it comes from Top Street Performance, and they said to call them if I have questions, and wow by your video I thought I was getting with a true company,,, did I make a mistake
Do you make a harness where I can run the ls engine with my factory gauges and 5 speed trans ? 5.3 ls going in a 2008 pontiac solstice gxp turbo , running aem boost and wide band gauges that are already in the car
Hi Steve here I just want to know will the early 9697 4L60 e work with that harness I won't have any problems shifting their transmission I got the early '96-97 4L60E I want to know if it will fit and work right cuz I just got done doing a transmission job in it
Got a 1998 chevy that had a 5.7 vortec in it. Long story short it don’t run anymore so I came across a truck that has a 6.0LS in it. Too that motor out and dropped it in my 98. I have the computer that came out is that truck will I still need to have it flashed. Same motor and same computer.
Hey Pat,...I'm shaping a 6.0 LS into my 1998 v6 Firebird. You said, that all we'll need is that wiring harness and the LS PCM. Is that still true in my case?
I have a computer that came with my motor the throttle body was a drive by wire but I bought a new intake manifold thats a mechanical throttle body. My question is do i need a different computer since I changed my intake.
Hello ,im looking for someone to do a gmt400 96-98 l31 vortec harness into a ls harness. .I was told that need add few wires for coils, and wires for injectors..I can't seem to find anything on this for a how to....????
Is there any difference on the blogs of the main Harness in the 4LQ Or it’s all the same if there is differences you New Year’s for sample or type of tracks it will help me to pick the engine and harness that capable to each other
Toby Whitaker gen III LS engines use a single PCM controlling both the engine and trans. Gen IV uses a separate TCM or transmission Control Module. Gen III years are 98-07, Gen IV 07-12(?). 2007 was a crossover year and could be either. Stay away from 98 fbody PCMs as they not the same.
Hello! The part number for the Speedway GM Engine Wiring Harness, 1999-02 LS1 is 91099021. The part number for the Speedway 2004-2008 Vortec V8 Wiring Harness, Extended is 91004084. Thanks!
If you are doing a LSX 454 the harness needed will vary depending on what fuel system that engine uses. If you have a factory ecm, use the corresponding harness for the year of the computer.
With this harness does it replace the entire harness of your build like the fuel pump to ecu? Amd do you still run your under hood fuse box with this harness or does it replace that fuse box with your harness box? Thx again Joe
Hey, while I don't have any experience with this particular harness, it's fundamentally identical to what you would end up with if you were to dissect your existing harness....so,short answer is 'NO', you would not be using the stock fuse panel. I personally recommend doing your own harness modifications, not only do you save a considerable amount of money, but you also gain a true understanding of exactly how your powertrain is oriented and how it functions. I recently "completed" (never truly complete!!) my first swap, a stock 5.3L vortec/ 4l60e from an '02 Silverado into a 1967 Dodge D200 Sweptline pickup. *RATHER than disabling the truck by removing the harness & thinning out the nonessential wires, I opted instead to go to the pick 'n pull, salvage an identical harness for $67 total, and complete the "standalone" harness procedures as laid out so generously by Brendan of lt1swap.com. So, by the time I had removed the complete harness from the salvage yard, reworked it, and removed the existing harness from my truck, I was able to install my reworked harness with virtually no assistance from the labels and notes I had taken on the connectors. Cheers! -Nick
The LS PCM won’t communicate at all with the BMW ECU. I’m sorry, but we don’t have any experience with getting the LS PCM to work with the factory gauges.
We do have LT1 harnesses available as part number 91009497. These harnesses are intended for installing your LT1 engine into another vehicle, so it is not exactly like the OEM harness. Here is a link to the instructions with more detailed info: static.speedwaymotors.com/pdf/91009497installationinstructions.pdf
The most annoying part about ls swapping is when you buy a ecu from a guy who claimed to remove vats when it's really not removed it's best to remove vats your self
@@jammie129 o yeah I seen a couple videos about that but imma just stack 1500 and get s terminator x it's a real headache dealing with the factory ecu and wiring dont nobody show a real tutorial on how to get it started on the internet you really gotta dig hard to find it
Hello! Here are the links for the harnesses with their current prices: 1999-02 LS1 www.speedwaymotors.com/Speedway-GM-Engine-Wiring-Harness-1999-02-LS1,46383.html?.0 2004-2008 www.speedwaymotors.com/Speedway-2004-2008-Vortec-V8-Wiring-Harness-Extended,46385.html?.0 Thanks!
on a ls swap 5.3 wut do dat big blue wire and green wiring run to because my car want start it just turning I got a stand alone harness I need help please
Ok so I doubt this has been asked because it's never been done but I'm running a cd009 behind my ls new edge mustang. Will this harness work for that. And is there info online on how to re pen the trans connector?
It appears you are correct in that your LS to a Nissan cd009 Transmission has likely not been done. The Speedway staff will not have the re pinning process for that match up but possibly online. You may also want to check with the “Fuel Injection Connection” as they are the most knowledgeable on these LS harnesses. Their number is on their website and be patient as they are very busy people.
I just used a junk yard one & flashed it. Re worked it & Cut the wires & sensors u won’t use . Basicly free w the engine
Hey I just got a sierra 1500 donor truck and want to swap my jku, how did you delete them just get a guy to tune it? What did you not need and can get away with
This is great if it's a rebuild ls, not so much for a salvage yard drop in, cost doesn't offset.
How much is this harness??
Will it work with a LS 3 / 5.3ltr.???
Why haven't they answered?
What do you have to do if I wanna put a ls 5.3 in my 1983 c10 and what kind of computer do I need a wiring?
Juan Lopez You have many options. If you are keeping the turbo 350, you need the flexplate spacer.You can also buy a specialty flexplate to adapt LS to old school. If you are using manual trans muncie 4spd., you need the flywheel out of early LS truck manual shift, old school clutch/pressure plate bolts right up, but you will have to enlarge pressure plate holes a tad. You also dont hammer in the throwout bearing all the way, you leave it sticking out of the crank a tad. You can do this wiring system in the video, or if you buy a junkyard motor on ebay and places like that, nowadays they include the wiring harness. You can also do away with this setup and buy the MSD injector kit with fuel rails and brain box, you can also run carb and buy the MSD kit which reads your timing sensors and fires the spark plugs. You can also do away with that and buy the front timing cover kit which spins a SB Ford distributor and have no sensors to go bad on the road. Many choices.* Ebay has a edelbrack manifold kit minus the carburetor with the MSD brain for the spark plugs for around $700.
Can you integrate the factory donor harness with the vehicle's factory harness? I have a running 99 S10 Blazer and don't want to hack up the interior.
hi pat i need to no i have a 2014 ctsv 6.2 motor and wired harness and computer i want to put it in my 1996 impala ss so what do i need to start ?????
$630 is a little ridiculous
Hi pat will that harness work on a 1989 GMC pickup truck with a 5.3 LS
I need to know that too I have an 89 Silverado I have a 2000 5.3 and 4l60e
Hi I’m swapping a5.3 LS to my49 Chevy truck and keep it fuel injection what harness should I use
Good evening sir what about the air conditioner will it work with the 1996 chevy silverado
Can I order a harness that includes a 4l80e and is drive by wire?
Painless wiring harness look them up
See what I am confused with is I KNOW I need a computer, but which one is it (PCM or ECM) and where can it be found (generally) is where I get lost.
The thing to think about is those junk yard harnesses are getting old, if you are doing a gen 4 swap you’re probably ok. I used a junkyard harnesses for years but now it is 20 plus years old, the connectors are brittle, some of my fuel injector connectors are broken. 15 years ago hands down i would and did use a junkyard harnesses. I’m now looking to replace my existing swap harnesses,
I have a 2005 gto that was in a fire.. all of the wiring harness are gone. This Car will be strictly a track car only and I wanted to know if I can use this harness as a replacement ? i just need it to start run and have the headlight be operational.
I have a stand alone harness for my 92 c1500. Where in the truck do I connect the 9 wires that don’t have plugs
I’m wanting to run my Lt1 with a 0411 ECM , do you offer a harness that can do this?
I’d appreciate any advice concerning the Lt1 up grade
GREAT VIDEO PAT!!! I AM ALWAYS LEARNING ABOUT THE LS MOTOR. GREAT VIDEO AND EDUCATION. THANKS FOR SHARING. I LEARNED SO MUCH.
Can you direct me to the proper ls wire harness replacement for a 2008 chevrolet silverado 1500 lt trim, ls1 engine gen 2 vin J
hello Pam i am look for a good wires harness for 4.3 to a 5.3 ls swap Chevy Tahoe 1997 to a 2002 tahoe
Lol quick question I want to buy this harness but have no clue which one I would need cause on the website it says either 99-02 or 04-08 well I’m taking my ls out of a 2003 Tahoe so which one would I need? Lol
If it is a cable operated throttle body you would need this part: www.speedwaymotors.com/Speedway-1999-2003-Vortec-V8-Wiring-Harness,46373.html. They didn't use the throttle by wire design until 2004, so that is the difference.
Better question Pat.
Why don't you ever answer anybody!?
You did ask us to write in with questions, you know?
Trying to put away 6 L Vortech harness and computer in a 01 short box Chevy 1500
Used to be 4.3 v6 Would like to plug and play but found those harder than that just wondering if you got any tips
Put a
Can it be ordered with drive by wire.
Is there a complete wire harnes for a 1980 ford f150 available?
As cheap Pete would say..."good lord that's a Lotta money! "
Where are you located
We are located in Lincoln, Nebraska and we have a retail store and warehouse in Tolleson, Arizona as well.
Do ya'll do ls swap
I have a 6.0 with a 3 stage cam n 4180 trans , what computer and wire harness i need ?
I have a 88 camaro and wanna ls swap it and keep my t5 transmission is that possible
I did not get instructions with my purchase of your harness, how do I get that manual,
We apologize for that! We'll get that taken care of. Which harness in particular did you order?
@@speedwaymotors i thought that I was buying your harness made by you, and warranted by you, and supported by you,. I purchased it on eBay, and after sending a request and questions about the harness - you now tell me that you don't even make / rewired the harness that it comes from Top Street Performance, and they said to call them if I have questions, and wow by your video I thought I was getting with a true company,,, did I make a mistake
+Speedway Motors, what company makes the LS wiring harness, like the one in this video? I'm thinking PSI.
Fuel Injection Connection, which is a Speedway Motors brand.
Speedway Motors, thanks.
Dbw connectors on the wire harness mine doesn't have one what do I do
Do you make a harness where I can run the ls engine with my factory gauges and 5 speed trans ? 5.3 ls going in a 2008 pontiac solstice gxp turbo , running aem boost and wide band gauges that are already in the car
Hello what about neutral safety . I have obd 97 tahoe
Hi Steve here I just want to know will the early 9697 4L60 e work with that harness I won't have any problems shifting their transmission I got the early '96-97 4L60E I want to know if it will fit and work right cuz I just got done doing a transmission job in it
Does your harness have the oil pressure sensor connector ?
Got a 1998 chevy that had a 5.7 vortec in it. Long story short it don’t run anymore so I came across a truck that has a 6.0LS in it. Too that motor out and dropped it in my 98. I have the computer that came out is that truck will I still need to have it flashed. Same motor and same computer.
Anyone willing to recommend a shop that will install an LS3 with a transfercase on a 4l80e in my 1974 K5.?
Hey Pat,...I'm shaping a 6.0 LS into my 1998 v6 Firebird.
You said, that all we'll need is that wiring harness and the LS PCM.
Is that still true in my case?
Hello there I have a 6.0 engine that I want to install in a 2006 hummer h3 can it be possible to make want to connect to factory harness
I have a computer that came with my motor the throttle body was a drive by wire but I bought a new intake manifold thats a mechanical throttle body. My question is do i need a different computer since I changed my intake.
I think this ls harnesses are over price
I have a 91 yj and a 97 dodge I want to put the v8 in my yj do you make a wire harness for something like that?
I am putting 2004 6.0 with a 1996 4l80e in 1969 dodge d100 sweptline. Can you give me some tips?
Hi,did you guys have a standalone harness for a 3.8GM motor?
What's the price on that wire harness
We have a link to the product page in the description box :)
Wait so this will fit in my YJ
Hello ,im looking for someone to do a gmt400 96-98 l31 vortec harness into a ls harness. .I was told that need add few wires for coils, and wires for injectors..I can't seem to find anything on this for a how to....????
quick question i have a mazda rx8 im ls swapping cab i use his stock 6 soeed trands on the ls swap? thanks
Great information, can you do a Harness for a 2007 silverado 5.3
What’s the name of the harness and I have the 5.3 computer can I use it with that harness
How can i splicing ECU port for HP tuner, which wire can i use
Can I order a harness for a 5.3 l33 wired already for a turbo 400
Do you still need another fuse box and harness to run the other stuff
This LS conversion harness will only run the engine itself. You will still need to have a harness and fusebox for the rest of the car.
Is there any difference on the blogs of the main Harness in the 4LQ Or it’s all the same if there is differences you New Year’s for sample or type of tracks it will help me to pick the engine and harness that capable to each other
Can you ship one to Canada ? Fir my 94 4.3
Hello! Unfortunately we don't offer a wiring harness that will fit your application.
I need to know what cam and lifters kit I can use with out dod
Does the 4l80e have its own computer? Or does it use the engine pcm? I'm somewhat new to this.
Toby Whitaker gen III LS engines use a single PCM controlling both the engine and trans. Gen IV uses a separate TCM or transmission Control Module. Gen III years are 98-07, Gen IV 07-12(?). 2007 was a crossover year and could be either. Stay away from 98 fbody PCMs as they not the same.
I thought the 4l80 would use the t42 control module ?
Great video
Part number for the wiring harness
Hello! The part number for the Speedway GM Engine Wiring Harness, 1999-02 LS1 is 91099021. The part number for the Speedway 2004-2008 Vortec V8 Wiring Harness, Extended is 91004084. Thanks!
I’m doing a LSX 454 swap on my 99 Chevy Tahoe is this the wire hardness ima need ?
If you are doing a LSX 454 the harness needed will vary depending on what fuel system that engine uses. If you have a factory ecm, use the corresponding harness for the year of the computer.
Hey Pat I am looking for a Corvette c6 wiring harness can you help
Hello Anthony. Our techs would be very happy to get you the wiring harness you need! Give them a call at 800-979-0122 and they'll be glad to help.
With this harness does it replace the entire harness of your build like the fuel pump to ecu? Amd do you still run your under hood fuse box with this harness or does it replace that fuse box with your harness box? Thx again
Joe
Hey, while I don't have any experience with this particular harness, it's fundamentally identical to what you would end up with if you were to dissect your existing harness....so,short answer is 'NO', you would not be using the stock fuse panel. I personally recommend doing your own harness modifications, not only do you save a considerable amount of money, but you also gain a true understanding of exactly how your powertrain is oriented and how it functions. I recently "completed" (never truly complete!!) my first swap, a stock 5.3L vortec/ 4l60e from an '02 Silverado into a 1967 Dodge D200 Sweptline pickup. *RATHER than disabling the truck by removing the harness & thinning out the nonessential wires, I opted instead to go to the pick 'n pull, salvage an identical harness for $67 total, and complete the "standalone" harness procedures as laid out so generously by Brendan of lt1swap.com. So, by the time I had removed the complete harness from the salvage yard, reworked it, and removed the existing harness from my truck, I was able to install my reworked harness with virtually no assistance from the labels and notes I had taken on the connectors.
Cheers!
-Nick
How do you go about integrating an e39 540i ECU with the LS ECU as I wish to keep my interior completely stock?
The LS PCM won’t communicate at all with the BMW ECU. I’m sorry, but we don’t have any experience with getting the LS PCM to work with the factory gauges.
How much? And do you have one for a tko 600 transmission ? Thank you for the video.
The this harness works on a 92 camaro swap 5.3?
First ls swap . Do I need to keep my original computer as well as in stalling this one? To use all the inside stuff
This is a harness not a computer
I'm doing a Ls swap on my 1997 z71 what will I need for my project
Hey u ha e a chanel? Id like to see the progress on ur project 97..i hve a 96 i want to do the same thing...
What do I need to put in a 1976 Blazer
Hello pat i have a 1996 impala lt1 do speedway make lt1 harness i have a electrical issue and i wana buy a new harness
We do have LT1 harnesses available as part number 91009497. These harnesses are intended for installing your LT1 engine into another vehicle, so it is not exactly like the OEM harness. Here is a link to the instructions with more detailed info: static.speedwaymotors.com/pdf/91009497installationinstructions.pdf
Speedway Motors no sir its goin back in my 96 impala
The most annoying part about ls swapping is when you buy a ecu from a guy who claimed to remove vats when it's really not removed it's best to remove vats your self
I heard a rumor you can delete it by using a similar year truck or car and confuse the ecm by unhooking the body module
@@jammie129 o yeah I seen a couple videos about that but imma just stack 1500 and get s terminator x it's a real headache dealing with the factory ecu and wiring dont nobody show a real tutorial on how to get it started on the internet you really gotta dig hard to find it
I found a video that showed how you can get it going with 3 wires. Ill post the linkua-cam.com/video/CzENUutXzn8/v-deo.html
How much is it $$$
$650 ?
Did you buy one ? And if you did how is it going so far?
you guys should add a warning light to the obd-ii port
600 for some wires not me
do you guys do the 6 liter harness from 2002 and up?????
Tommy Woods I
Thanks for true content.
How much is dat harness
Hello! Here are the links for the harnesses with their current prices: 1999-02 LS1 www.speedwaymotors.com/Speedway-GM-Engine-Wiring-Harness-1999-02-LS1,46383.html?.0 2004-2008 www.speedwaymotors.com/Speedway-2004-2008-Vortec-V8-Wiring-Harness-Extended,46385.html?.0 Thanks!
How does this compare to the new FiTech unit? I'm talking about just the harness and ECU.
Do you ship to Canada????
Yes, we do.
on a ls swap 5.3 wut do dat big blue wire and green wiring run to because my car want start it just turning I got a stand alone harness I need help please
I have a 1994 bubble Chevy class and I'm putting a LS 5.3 engine in it and I need what you are talking about and what's y'all phone number
Ok so I doubt this has been asked because it's never been done but I'm running a cd009 behind my ls new edge mustang. Will this harness work for that. And is there info online on how to re pen the trans connector?
It appears you are correct in that your LS to a Nissan cd009 Transmission has likely not been done. The Speedway staff will not have the re pinning process for that match up but possibly online. You may also want to check with the “Fuel Injection Connection” as they are the most knowledgeable on these LS harnesses. Their number is on their website and be patient as they are very busy people.
How much are the harnesses ? Price range
The price range for an LS harness is $599.99-$799.99, depending on the year the harness is intended for.
Speedway Motors k