V8 swap harness differences

[jscott8692]

Good evening yall, I am finishing up a V8 swap on an 86 coupe and have some questions about wire harness differences. I tried looking through the diagrams posted and cant seem to have any luck. My car was a 4 cylinder auto and I got the harness out of a 86 GT with a five speed. I have the engine harness and body harness from the GT installed and all of the connectors that would match up connected. There are 8 connectors that dont match up and wanted to see if they are things I will need. The first 3 photos are apart of the V8 harness and attaches to the dash from the engine bay on the drivers side. I believe that the two butterfly connectors are for the clutch pedal assy. which I dont have yet...(5 speed swap planned.)


The next 4 photos are where the dash harness connects to the body harness and runs to the rear. These two are from the 4 cyl harness into the dash.


And these two are from the GT harness to the rear.

Any help identifying these would be much appreciated.

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[dagenham]

The only two I say for sure are the two "butterfly" connectors are for the clutch switch. I think the first two connectors do not get used but I am going from an 85 perspective.

[jscott8692]

Yea that's all I have been able to find myself lol. I'm hoping that the other connectors are just options my car doesn't have.

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[Ourobos]

Likely just options. Did you use the tail light harness from the V8? It's needed, as it has the fuel pump circuit built in.

[jscott8692]

Yes I did use the taillight harness and I am hoping they are just options lol. The motor should be ready to go in within the next two months so i'm gonna try and look through the wiring diagrams a little closer but worst case I'll put the motor in and see what happens.

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