74 or 75, is there a difference?

[Mick Semantel]

I'm in the process of upgrading my 75 Dart. I'm pulling out the slant 6 and dropping a 340 horse 360. I will replace the engine wiring harness, but can only find harnesses that only go up to 74. Is there a difference in wiring harnesses between 74 and 75?

 

[Mrmopartech]

You only have /6 harness or a V8 harness,with or with out A/C,the only other option is a lean burn.Why don,t you jusy make a harness or replace the bad wires,as I can send you the wiring diagrams to you if you email me your address,Mrmopartech

 

[Dusteriffic]

I agree with Mr. Mo that most harnesses are the same depending on engine and A/C. I own a '76 Duster and I'm also finding that most of the aftermarket seems to have a prejudice against the '75 and '76 cars, even though almost everything will interchange from '73 and up. I too plan on doing a V8 swap in the future and will be purchasing a '74 V8 harness. Good luck, Mick.

 

[Mick Semantel]

The wires look fine, and the car doesn't have A/C. I heard that when the /6 is removed for a V8, the wiring harness must be swapped out as well. I did consider doing my own, it just seems over my head. I'm the only one in my family who isn't an electrician. But thank you for all of the support.

 

[Mark Nixon]

Mick, the only difference between the slant six wiring and V-8, for '74-'76, is the last @ 1-1/2 foot of wiring.
There is a black connector that you just unplug and replace with a V-8 end, so there is no need to remove all of the wiring from the engine compartment.

I have a V-8 end wiring that will correct this.

Mark.

 

[Mick Semantel]

If that's all I need then I'll go that route. Thanks, I appreciate it.