Ranger , thanks for the help.
Actually I think I jumped the gun by not looking at the748q before ordering. It is made with copper center wire and the one I bought9748q is made of wire wound stainless steel alloy. Did I buy the 'good' version instead of the 'best'? Is this even an issue? Stress is not good, I can sent them back and get the copper core if it will work better or last longer.
Ranger I know I have taken alot of your time, however I do value your opinion.....Ed
Automobile(s): White Diamond '03 DHS (with DTS floor shift)
Didn't realize there was THAT much of a difference. I thought the 9748Q were the OEM wires and that is what I used on my '97. Replaced them at 70-80K and kept the car until 107K. Never had a problem with them. That's about all I can tell you Ed. I don't think I'd fret over them.
I think my neighbor is still running those wires (probably about 10 years later).
Wire wound stainless steel alloy (over a fiberglass/carbon core) is the standard construction for most "performance" ignition cable today. The stainless coil acts as an EMI barrier to reduce electronic noise emission - the old whirrr/buzzzzz in the radio.
Your wireset is perfectly fine for your engine application.