good combo 
Spark Plug wires for headers
Race Director
Joined: Mar 2007
Posts: 18,308
Likes: 21
From: Marlton. Increasing performance one speeding ticket at a time! NJ
I think the GM/Delco Red wires work best for fitment. Many cars here have them.
MSD's are supposed to have a higher temp jacketing but don't fit quite as nice. Not that it's a problem, just the boots are a little long. I have the MSD's with headers and am happy with them.
MSD's are supposed to have a higher temp jacketing but don't fit quite as nice. Not that it's a problem, just the boots are a little long. I have the MSD's with headers and am happy with them.
Melting Slicks
Joined: Apr 2009
Posts: 2,479
Likes: 36
You can try Accel Extreme 9000 wires. The boots are ceramic. No heat jackets required.
http://www.accel-ignition.com/
http://www.accel-ignition.com/
Last edited by Cybermind; Sep 26, 2009 at 08:27 AM.
Premium Supporting Vendor
Joined: Nov 2006
Posts: 30,317
Likes: 165
From: Reading PA
I would be happy to help you out with the AC Delco items.
||--Genuine GM Tune-Up Items--||
12495519 – GMPP red spark plug wire set – 60.00
12621258 – GM AC Delco Iridium spark plugs – 6.47 each
||--Genuine GM Tune-Up Items--||
12495519 – GMPP red spark plug wire set – 60.00
12621258 – GM AC Delco Iridium spark plugs – 6.47 each
Team Owner
Joined: Jul 2004
Posts: 30,045
Likes: 4
From: Danville Virginia
Melting Slicks
Joined: Apr 2002
Posts: 2,631
Likes: 2
From: Clever, MO aka SOMO
I'm running MSD 8.5mm wires, with the stock metal heat shields back over the plugs and a set of KoolSox shields for extra protection. All done with a set of NGK plugs at the same time.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Melting Slicks
Joined: Oct 2001
Posts: 2,561
Likes: 162
From: Louisville KY
2020 Corvette of the Year Finalist (performance mods)
C6 of Year Winner (performance mods) 2019
I've tried most of them and seem to always have problems with the wire on the drivers side can't remember the #. My mechanic has recommended Magnacors.
I have a home made metal sleve on that wire right now. I think I'll try Magnacores next.
I have a home made metal sleve on that wire right now. I think I'll try Magnacores next.
I was eating spark plug wires constantly until ECS went with these.
Le Mans Master
Joined: May 2007
Posts: 5,383
Likes: 6
From: hagerstown md
St. Jude Donor '08-'09
GMPP red wires and plugs from Gene. Been on about 6 months or so. Had to pull them off and replace the header gaskets last week. They slid off smooth, and looked like they had just come out of the box. 
Thread Starter
Veteran
Joined: Jan 2000
Posts: 2,082
Likes: 1
From: Louisville KY
Same here. It's the #5 wire on the driver's side. It's the only one that burns in half. This time I went with MSD and I agree with nj02vette, the boots are a little too long. I also use KoolSox covers on my wires. In order to try to protect #5 this time, I gave it double protection. I put two KoolSox covers on the wire. I guess time will tell.
Race Director
Joined: Apr 2005
Posts: 10,179
Likes: 2,306
From: Wesley Chapel, FL Las Vegas, NV
MSD Wires on my SC Vette with Kooks LT. NO heat shields, No heat socks, No problems in 3 1/2 years.
Be sure to use a little Dielectric grease on both end when installing.
Be sure to use a little Dielectric grease on both end when installing.
