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Bored&Stroked · 12-23-2023, 01:07 PM

I always make my own wires - because at least I then know the quality of the wire that I buy as well as the conductor ends.

I've used Packard 440 for years, but might look at the Belden 7mm metallic core wire that was mentioned up above. You can purchase high-quality ends from a variety of places. I buy the high-quality ends from MSD or Taylor (I'm sure others have them) - and crimp them with the proper dies/pliers.

If I saw those cracks in my wires, I'd be concerned and would not be running them. Also, as a test, you can make ONE wire and replace the existing ones for the cylinders that are not firing and see if you see a change.

If you're running the steel spark plug wire tubes (with the wires inside of them) - then the quality of the wire is SUPER important. Having all four wires running through steel tubes requires that the wires absolutely have no chance for leakage.

Best of luck!

12-23-2023, 01:07 PM	#116
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,910	Re: 47 V8 ignition mystery I always make my own wires - because at least I then know the quality of the wire that I buy as well as the conductor ends. I've used Packard 440 for years, but might look at the Belden 7mm metallic core wire that was mentioned up above. You can purchase high-quality ends from a variety of places. I buy the high-quality ends from MSD or Taylor (I'm sure others have them) - and crimp them with the proper dies/pliers. If I saw those cracks in my wires, I'd be concerned and would not be running them. Also, as a test, you can make ONE wire and replace the existing ones for the cylinders that are not firing and see if you see a change. If you're running the steel spark plug wire tubes (with the wires inside of them) - then the quality of the wire is SUPER important. Having all four wires running through steel tubes requires that the wires absolutely have no chance for leakage. Best of luck!