LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

Who can make an LT1 swap harness for me?

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Old Jul 6, 2012 | 01:08 PM
  #1  
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Who can make an LT1 swap harness for me?

Im getting a refund from Pocket on my dads swap harness and I have to start from scratch now. Im looking for someone whose work is the same caliber and quality as Pockets but I need a turnaround time of 3 weeks or less. If anyone is up for the task or can refer me please let me know.

I will need references on whoever does the work, sorry but this has been a big fiasco and I need it done quick and correct.
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Old Jul 6, 2012 | 02:20 PM
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From: santa barbara,ca
Car: 1990 iroc z
Engine: LSX 376 F1A
Transmission: 4l60e
Axle/Gears: 12 bolt 3.42
Re: Who can make an LT1 swap harness for me?

well u could always just with quality and go with something like speartech or check on ebay. Or just build the harness yourself..
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Old Jul 6, 2012 | 02:39 PM
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BlueZee28's Avatar
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: Who can make an LT1 swap harness for me?

Building myself is not an option unfortunately.
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Old Jul 6, 2012 | 03:15 PM
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From: Poconos, Pa
Car: 1984 Firebird
Engine: LT1
Transmission: T5
Axle/Gears: 3.42's
Re: Who can make an LT1 swap harness for me?

I used lt1350.com back in the day. If your car already has fuel injection, you should be good to go. I had to modify mine a bit, since it was carbed.
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Old Jul 6, 2012 | 08:04 PM
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From: Kingsport Tenn
Car: 1992 camaro
Engine: LT1
Transmission: 4L60E
Axle/Gears: 3:73
Re: Who can make an LT1 swap harness for me?

http://www.ebay.com/itm/1994-95-LT1-...item2c66562d7e
I have this one in my swap you may not want some of the stuff on it like the extra fuse block a/c ..... If you let them know they will leave the some of the stuff off.
I don't know how you want to run it but they can add to the harness to run it the original way the 3rd gen harness was.
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Old Jul 8, 2012 | 01:35 AM
  #6  
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From: Kansas City
Car: 1991 Trans Am
Engine: L98
Transmission: T56
Re: Who can make an LT1 swap harness for me?

You could always modify the intake and run a tpi harness/ecu with some of the newer tuning options for them. That would keep harness mods small. Just need someone competent to do the machine work for the distributor.
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Old Jul 8, 2012 | 07:41 AM
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Re: Who can make an LT1 swap harness for me?

thats the harness I used also
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Old Jul 8, 2012 | 09:37 AM
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From: Minnesota
Car: 89 IROC-Z
Engine: 370 LSX, LS3 Top End
Transmission: Built T-56
Axle/Gears: 9" Aluminum Center 3.89's
Re: Who can make an LT1 swap harness for me?

IF you have time to do it yourself i would do it that way. More custom to your car and you learn alot. If not, I would get one from a company like speartech that you know will get you a harness and not forget about you lol.

Its a shame though Jon had a ton of knowledge and shared everything he could.

Does anyone know what happened to him? Maybe moved and doesn't have time to sit on the boards every 5 seconds?
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Old Jul 8, 2012 | 10:00 AM
  #9  
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From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Re: Who can make an LT1 swap harness for me?

Why don't you want to do it yourself? No time ? or just not sure you can do it? With the wealth of info on here I have no doubt you could do it yourself with a few hours set aside to do it.

Ive used http://howellefi.com/ in the past. Was great quality work.
I attempted to do my own harnesses. Now that Ive done a handful Its really easy. As I said Im sure you can do it.
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Old Jul 9, 2012 | 01:52 PM
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From: santa barbara,ca
Car: 1990 iroc z
Engine: LSX 376 F1A
Transmission: 4l60e
Axle/Gears: 12 bolt 3.42
Re: Who can make an LT1 swap harness for me?

or u could just run a stock lt1 harness with a stock lt1 dash harness and your set. As long as you run a 4th gen dash...
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Old Jul 10, 2012 | 11:30 AM
  #11  
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From: Erie PA
Car: 2008 Silverado, 73 LeMans, 1987 GTA
Engine: 4.8, 350 Pontiac, 350 LT1
Transmission: 4L65E, TH350, T56
Axle/Gears: 3.42, 2.73, 3.42
Re: Who can make an LT1 swap harness for me?

bought mine from eficonnection
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Old Jul 18, 2012 | 12:55 PM
  #12  
BlueZee28's Avatar
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: Who can make an LT1 swap harness for me?

FYI

Speartech no longer makes LT1 harnesses. They only do LSx now. I also checked with Painless and they dont built swap harnesses using two factory harnesses. They make stand alone stuff that would require more work to use.

I am sending everything to a different TGO member that has done other harnesses.
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Old Jul 18, 2012 | 03:24 PM
  #13  
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From: Apopka, Florida
Car: 1989 Pontiac Trans Am GTA
Engine: cammed LS1
Transmission: Monster SS 4L65E
Axle/Gears: 9 bolt posi w/ 3.70 gears
Re: Who can make an LT1 swap harness for me?

After getting about 3/4 of the way through my harness, I now understand why Hawk's wants a grand to do them!
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