Best Wires for Headers?
Thread Starter
Safety Car
Joined: Jul 2003
Posts: 4,928
Likes: 1
Best Wires for Headers?
Does anyone have suggestions for plug wires to stand up to LT headers? I currently have Taylor Spiro Pros but they are around 5 years old. I don't think they will handle the heat of the headers.
What have you used?
What have you used?
Melting Slicks
Joined: Jun 2002
Posts: 2,152
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From: Northern VA
Team Owner
Joined: Sep 2001
Posts: 62,139
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
The wires will hold up for the 2 years you should leave them in until you are supposed to change plugs/wires again, but depending on the header brand and fitment to the heads, you might notice wires with thicker boots will touch the header pipe, those cloth boots are the only way you will get around not having to replace wires once a week.
They'll burn through very fast.
Mine rub the wire boot on #7 and #6, so even with the boot protectors on, I end up changing out a wire every couple months.
Drifting
Joined: Dec 2005
Posts: 1,313
Likes: 2
From: High Ridge Missouri
Yes just plastic 3/8 loom. The 3/8 will fit over up to 9mm wires and you can get 50ft rolls from Summit for around $10-$12, cheapest I found it and I just buy large rolls of it because I use it for everything (took like 20 plus feet to do the plug wires).
Race Director
Joined: Nov 2003
Posts: 12,221
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From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
How about a set that mounts by being routed under the headers?
That's what I picked.
That's what I picked.
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Burning Brakes
Joined: Feb 2002
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From: Fresno CA
Race Director
Joined: Nov 2003
Posts: 12,221
Likes: 446
From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
What's "MSD Pro heat guard"? Is it boots, spray, or other?
8.5mm is what I was looking at until I found this set of 10mm race-grade wires...
SBC CHEVY RACE GRADE SPARK PLUG WIRES 10MM BLK 327-OMK
I found them on everybody's favorite auction site.
Burning Brakes
Joined: Feb 2002
Posts: 804
Likes: 5
From: Fresno CA
It's a sleeving material but it's not going to work on a 10mm wire I'm certain, it is a tight fit on the 8.5's. One roll of 25ft was enough for me to do all 8 wires and then I used shrink tubing at each end to seal it to the wires.
Team Owner
Joined: Jan 2003
Posts: 20,297
Likes: 240
From: Summerland B.C. Canada
Have you run the motor yet ?? If not, I see a melt down coming your way. I had a piece of that stuff, over the aux fan temp switch wire. It didn't last long. 
To the original poster, I think it's more about wire routing, than what wire. I'm using the stock looms and wires and not a hint of burning around headers.
To the original poster, I think it's more about wire routing, than what wire. I'm using the stock looms and wires and not a hint of burning around headers.
Thread Starter
Safety Car
Joined: Jul 2003
Posts: 4,928
Likes: 1
I sure like the look and idea of routing them under the headers and up the back of the engine. That really looks good! I think I'll hang on to mine for awhile and see what happens, then maybe custom make a set to like those above. I'm dying to get my car running well and be able to drive it!
Race Director
Joined: Nov 2003
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From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
Burning Brakes
Joined: Mar 2008
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From: Houston TX
Melting Slicks
Joined: Jun 2002
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From: Chesapeake Beach Maryland
2015 C5 of Year Finalist
I'm using the MSD wires and Made4You wire looms
Seems to be working great.
http://www.summitracing.com/search/B.../?autoview=sku
Seems to be working great.
http://www.summitracing.com/search/B.../?autoview=sku
Pro
Joined: Apr 2008
Posts: 542
Likes: 0
From: middle of Illinois
I'm using taylor 8.2mm. I haven't had any trouble yet, but when I start the engine for the first time this weekend, I may have a different story. I specifically asked for all 90* boots when I ordered from summit, but got a set with two straight boots. One of the straight boots is fine on the #8 plug, it isn't even close to the header. But the other one had to go on #3 and it's only a couple millimeters away from the header. I plan on zip tying it to the #1 wire to keep it as far away as possible, but it's close enough I'm liking the idea of that high temp wrap pictured above by ultraviolet.