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Old 12-03-2022, 10:48 AM
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Default Roush vs Ford Spark plug wires

My 427ir died pulling out of my neighbor. Started back up after a few tries but it was running like crap. I was able to make it back to the house. Before it died I checked each spark plug wire to be sure one didn’t pop off. I don’t recommend doing this with the engine running. The first wire I grabbed shocked the piss out of me. Long story short. I ordered new ford racing 9mm plug wires to replace the roush wires it came with. I was told the ford racing wires were a direct replacement. I checked the resistance in in both sets of wires. The old roush wires were ~400 ohms. The new ford wires measured ~4000 ohms. I thought I would see more resistance on the old wires???? Is this difference enough to worry about?

Appreciate the help. Mike
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