Difference between 7mm and 8mm spark plug wires

[dysfunctionall1]

What is the difference between 7mm spark plug wires and 8mm? 7mm is the factory size, and Ive read on here recently that 8.5 is too big without an upgraded ignition system. I was just curious because I have read on here that everyone uses 8mm, so I went to several stores around here to get the 8mm ones and no body carries them, they have to order them in. I was just wanting to know the difference before I have anyone order them or I buy the 7mm ones. Thanks

[grapejuice1998]

The difference is 1mm. You can thank me later.


BTW-I use the 7mm Mopar wires on my 408. They work great!

[y2krtaf]

Originally Posted by grapejuice1998

The difference is 1mm. You can thank me later.


BTW-I use the 7mm Mopar wires on my 408. They work great!

LOL

Ya beat me to it!

[dysfunctionall1]

LOL ok, I figured that much, I was just wondering if there really is an advantage to them. Thanks for the super easy answer lol

[Filthy Filbert]

I'd think the resistance per foot is more important than the diameter of the wire.

For what it's worth, I really like the firecore 50s, and won't buy another brand wire again. Great fit, they feel good in my hand, and you can feel them "click" into place and there's no question on whiter they're on or not, plus I know the owner, Rick. Great guy, awesome customer service, and he's a mopar guy too. Owns a rare 71 GTX w a factory sunroof option. And he's right here in Ohio. Stop by his trailer at Carlisle, Nats and other races, Rick will offer you a beer, shoot the bull, and flat out take care of you.

[ScojoDak]

Originally Posted by 70Cuda383

For what it's worth, I really like the firecore 50s, and won't buy another brand wire again. Great fit, they feel good in my hand, and you can feel them "click" into place and there's no question on whiter they're on or not.

Plus he makes them a tad longer so wire looms can be used for a clean look.

[Adobedude]

Firecore 50s FTW!

[grapejuice1998]

I could never get that asshole at Firecore to build me a set of wires.

[Adobedude]

Originally Posted by grapejuice1998

I could never get that asshole at Firecore to build me a set of wires.

That's nuts, I have two sets....When was the last time you tried?

[grapejuice1998]

Originally Posted by Adobedude

That's nuts, I have two sets....When was the last time you tried?

I called back in Feb when you gave me his number. He said he was totally out of wire, but would keep my number and call me when he got a new supply. He called about 9:PM on a Sunday night in May, but I didn't recognize the area code, so I let it go to voice mail. He left a message that I should call him immediately to give him my CC and he would ship them. I didn't call until the next day..and the day after and the day after that, but he never answered the phone and he never returned my call. So...fuck him.