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.

lt1 swap gauge question

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Old Apr 13, 2014 | 03:56 PM
  #1  
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lt1 swap gauge question

Trying to get things together to start my lt1 swap. Have entire lt1 460le out of impala ss with all harnesses. Going into an 87 trans am tpi car with digital dash. What must i do to retain my digital gauges
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Old Apr 13, 2014 | 05:59 PM
  #2  
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Re: lt1 swap gauge question

Originally Posted by midge54
What must i do to retain my digital gauges
https://www.thirdgen.org/forums/ltx-...p-3rd-gen.html
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Old Apr 13, 2014 | 06:35 PM
  #3  
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From: Pennsylvania
Car: 86 Trans am
Engine: LG4
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Axle/Gears: 3.27 9 bolt posi
Re: lt1 swap gauge question

So is it safe to cut up my unmolested tpi harness or should i find a tbi or carb harness to use
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Old Apr 13, 2014 | 09:21 PM
  #4  
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: lt1 swap gauge question

Originally Posted by midge54
So is it safe to cut up my unmolested tpi harness or should i find a tbi or carb harness to use
Did you read the link?

"Buy a V6 or TBI harness and modify that one as they are significantly cheaper and the sale of the SD TPI harness should net you a good chunk back
Everything V6/TBI/TPI about your old harness is being removed"
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Old Apr 13, 2014 | 09:38 PM
  #5  
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From: Pennsylvania
Car: 86 Trans am
Engine: LG4
Transmission: T-5
Axle/Gears: 3.27 9 bolt posi
Re: lt1 swap gauge question

I read that however mine is maf not sd
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Old Apr 14, 2014 | 07:49 AM
  #6  
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Re: lt1 swap gauge question

Originally Posted by vetteoz
Did you read the link?

"Buy a V6 or TBI harness and modify that one as they are significantly cheaper and the sale of the TPI harness should net you a good chunk back
Everything V6/TBI/TPI about your old harness is being removed"
Fixed
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Old Apr 21, 2014 | 07:59 PM
  #7  
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From: Pennsylvania
Car: 86 Trans am
Engine: LG4
Transmission: T-5
Axle/Gears: 3.27 9 bolt posi
Re: lt1 swap gauge question

Another question the ECM harness that goes through the fender, is there anything needed off that harness or can I just remove it, I have a carb harness screwed into the bulkhead and I have a carb ECM harness down at my brothers
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