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well that isn’t wrong.
but could you give me any more information? I’d like to know why one size is better or why it doesn’t matter.. I don’t want to mess it up doing something to it
Bottom line. The wire on the inside, is the same. With differences in copper or spiro core wire's of course. The difference in size is the thickness of the insulation. Thus the explanation of the the 8mm for very high output system's.
Thank you everyone!! I’ll pick up some 7mm and swap them out!
here is a pic, if you zoom in on the bottom left you can kinda see what I’m talking about. I just painted my air filter housing and my valve covers. And they’re alittle darker in person.
Thank you everyone!! I’ll pick up some 7mm and swap them out!
here is a pic, if you zoom in on the bottom left you can kinda see what I’m talking about. I just painted my air filter housing and my valve covers. And they’re alittle darker in person.
Appears that you have an hei distributor so remember to ask for 1975 or later wires as the 74 and earlier engines had points distributors and different ignition wires.
I recently installed a set of AC Delco Professional series wires on my 69 BB. They fit better than the set I had on there from AZ. Also got rid of a low speed miss that I had trouble tracking down. Cheap from RockAuto.
I recently installed a set of AC Delco Professional series wires on my 69 BB. They fit better than the set I had on there from AZ. Also got rid of a low speed miss that I had trouble tracking down. Cheap from RockAuto.
I have heard that AC Delco is good so I’ll definitely get theirs.
but I don’t know what a low speed miss is?
my first corvette, and car basically so.. gotta learn as I go.
I have heard that AC Delco is good so I’ll definitely get theirs.
but I don’t know what a low speed miss is?
my first corvette, and car basically so.. gotta learn as I go.
My car had a misfire at idle. I checked all the wires with a meter, and they tested fine. But, after 20+ yrs I changed them out and the car does idle better and faster, so, obviously, 1 or more was bad.
Added fyi
Current AC Delco does not mean "GM made is the USA". Lots of china stuff.
Wiring inside is NOT always the same. Some wires are just that....solid wire. Most aftermarket (and replacement stock) wires are 'resistor wire'. With solid wire inside, the thickness (and composition) of the insulation is important to prevent 'cross-talk' arcing (high voltage bleed-off). For resistor wire, 7mm (good quality) insulation is just as good as 8mm.
If you have a street cruiser, you probably need resistor-type spark plug wires.
Last edited by 7T1vette; Jun 16, 2020 at 05:27 PM.
Spark plug wires
