Spark Plug Wires
Thread Starter
Pro
Joined: Dec 2005
Posts: 701
Likes: 72
From: Lacey WA
Spark Plug Wires
I have a 2007 with 10K on it without headers. It has the orginal wires and runs really well. My question: How often should the wires be replaced? Are aftermarket wires better?
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Melting Slicks
Joined: Jul 2008
Posts: 2,402
Likes: 1
Spark plugs will last to 75k easily. Your not preventing anything, other than the local auto parts store going out of business.
So again, I'll double back to why do you like to waste your money?
Le Mans Master
Joined: Dec 2004
Posts: 5,492
Likes: 808
From: West coast CA
Spark plugs will "last" to 75k+ in the sense that they can make power and continue to pass smog tests, but a change at even 50k on an LS can yield a noticeable improvement at idle and low RPM.
Melting Slicks
Joined: Jul 2008
Posts: 2,402
Likes: 1
Okay, but the point is that every other year is overkill. Your traveling what, 15k maybe?
Le Mans Master
Joined: Jun 2007
Posts: 7,610
Likes: 12
Every other year I have my shop do a number of things as maintenance. I pay them once for this instead of taking the car in numerous times for numerous issues and paying numerous shop fees.
The wires get tested on a meter. There's always at least one or two of the wires no longer performing to optimum. Cheaper to just buy a new set. Likewise with the plugs.
You can argue how long a spark plug wire will last all you like. I know mine are functioning perfectly.
Safety Car
Joined: May 2006
Posts: 4,289
Likes: 129
From: Providence Forge, VA
St. Jude Donor '08-'09-'10-'11-'12
To the OP, as stated above the stock wires are as good as anything out there so I wouldn't worry about replacing them if they are not damaged. For those that desire to, IMHO you should do whatever you believe is the best care for your car and enjoy it. 
Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,151
From: SW Florida
2021 C6 of the Year Finalist - Modified
I doubt you really need new spark plug wires, but, if you really think you need them .. get a set of Magnecor KV85 Competition ignition cables.
These are 8.5mm and the best set of cables available. No gimmicks associated with these!
They also provide full suppression of both EMI and RFI, so they will not interfere with the Corvette's electronics.
Call Megnecor for the correct plug wires. There phone number is on there website.
These are 8.5mm and the best set of cables available. No gimmicks associated with these!
They also provide full suppression of both EMI and RFI, so they will not interfere with the Corvette's electronics.
Call Megnecor for the correct plug wires. There phone number is on there website.
CF Senior Member
Joined: Feb 2006
Posts: 23,313
Likes: 25
From: Tucson Arizona
From my experience the spark plugs and plug wires hold-up quite well. You can find better aftermarket plug wires but the OEM plug wires work well enough. As mentioned, if it ain't broke don't fix it. For a stock, street driven car and in the absence of any problem, I wouldn't even think about plugs or plug wires until well after 50,000 miles. I prefer the NGK TR55 spark plugs and IMO it helps to put 'cool socks' over the plugs/plug wires.
Advanced
Joined: Jun 2006
Posts: 65
Likes: 0
From: Kansas City MO
I installed these some years back on my '99 Z/28. It only was a couple years old, but I had heard that the factory did not use anti-sieze on the plug (which, obviously, screw into an aluminum head). I wanted to put in a new set and make sure I could get them out the next time- the F body 4th gen is very hard to change the passenger side plugs.
Sure enough, the originals were dry as could be and may well have been a problem down the line. Still have the car and have never had an ignition/spark plug related issue. Or any other issue that was serious, either!
These wires are still working great and test out fine. I noticed that they use the stock Delphi boots on both ends...
Sure enough, the originals were dry as could be and may well have been a problem down the line. Still have the car and have never had an ignition/spark plug related issue. Or any other issue that was serious, either!
These wires are still working great and test out fine. I noticed that they use the stock Delphi boots on both ends...
I doubt you really need new spark plug wires, but, if you really think you need them .. get a set of Magnecor KV85 Competition ignition cables.
These are 8.5mm and the best set of cables available. No gimmicks associated with these!
They also provide full suppression of both EMI and RFI, so they will not interfere with the Corvette's electronics.
Call Megnecor for the correct plug wires. There phone number is on there website.
These are 8.5mm and the best set of cables available. No gimmicks associated with these!
They also provide full suppression of both EMI and RFI, so they will not interfere with the Corvette's electronics.
Call Megnecor for the correct plug wires. There phone number is on there website.
Team Owner
Joined: Nov 2006
Posts: 21,136
Likes: 212
From: Long Island New York
for years now plugs come coated or plated from the manufacturer and require no anti-seize and some even say dont use it.
Your Camaros plugs were coated. GM would be insane not to use coated plugs to prevent Al/Fe galling in all their new cars.
Your Camaros plugs were coated. GM would be insane not to use coated plugs to prevent Al/Fe galling in all their new cars.
Safety Car
Joined: Jan 2004
Posts: 4,974
Likes: 14
From: Pinellas Park Fl
St. Jude Donor '08-'09 & '12, '14
