spark plugs
Thread Starter
Le Mans Master
Joined: Sep 2005
Posts: 5,520
Likes: 536
From: Hampshire, IL
spark plugs
Hi all. My car is a 2006 Z-51 vette. I have 64,000 miles on it in 10 years.
Do I need to change plugs at this point?
I plan on keeping it for a few more years.
What plugs are OEM?
Are there any better or equal plugs?
What should I pay to buy 8 and do the change myself?
Places to buy them auto parts stores - amazon.com?
Thanx to all that reply
Do I need to change plugs at this point?
I plan on keeping it for a few more years.
What plugs are OEM?
Are there any better or equal plugs?
What should I pay to buy 8 and do the change myself?
Places to buy them auto parts stores - amazon.com?
Thanx to all that reply
Melting Slicks
Joined: Jul 2011
Posts: 2,780
Likes: 314
From: Morris Co. NJ
St. Jude Donor '12-'13-'14-'15-'16-'17-'18,'21
Do you still have the owners manual? AC Delco is the OEM plug. Most vehicles today can go 100K miles . Is the car running smoothly? You can change the plugs if you are handy but you need to make sure the gap is set properly.
Most any plug you get at Auto Zone, Pep Boys or your favorite auto parts store will be OK.
$1.50 to about $3.00 depending on the brand and the plug composition.
Most any plug you get at Auto Zone, Pep Boys or your favorite auto parts store will be OK.
$1.50 to about $3.00 depending on the brand and the plug composition.
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
Safety Car
Joined: Dec 2006
Posts: 4,592
Likes: 1,672
From: Pearland / Houston Tx
And factory iridium plugs are not $1.50.
I replaced mine at 8 years/65,000 mi with AC-Delcos. Car ran fine but did them when changing wires. Old plugs looked good so the 100k interval is accurate.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Safety Car
Joined: Nov 2006
Posts: 3,667
Likes: 159
Le Mans Master
Joined: Oct 2000
Posts: 6,509
Likes: 724
From: Sausalito CA
Because of "electrolysis" (wrong term, yet descriptive) between alum head and steel plug, at this age, you should remove, inspect gap, re-apply anti seize and re-torque.
This inspect may limit and removal issues (broken plug, thread strip for example) in the future.
Odds are you don't need new plugs, so a $100 savings, yet the removal and re-install would be nice preventative maintenance if you intend to keep the car for many more years.
This inspect may limit and removal issues (broken plug, thread strip for example) in the future.
Odds are you don't need new plugs, so a $100 savings, yet the removal and re-install would be nice preventative maintenance if you intend to keep the car for many more years.
Safety Car
Joined: Jan 2011
Posts: 4,959
Likes: 526
Melting Slicks
Joined: May 2010
Posts: 2,142
Likes: 78
From: Rancho Santa Margarita California
If you're going to do the plugs, you might want to consider doing the wires at the same time. I did mine early as well. Easy DIY job, but....I struggled with getting a couple of wires off of the plugs and ended up breaking one. Fortunately, I was doing the wires at the same time.
For my LS3 (your 2006 has an LS2) I purchased: ACDelco 41-110 Professional Iridium Spark Plug from Amazon for about $5.25 per plug. Amazon has a "this part will fit your vehicle" feature to check for your car.
I also bought "ACDelco 748UU GM Original Equipment Spark Plug Wire Set" for the wires and paid $67 for those (again, for LS3...don't know if your engine needs something different). The wires came with a little tube of goop for the connections.
I also purchase a tube of anti-seize (Permatex 81343 Anti-Seize Lubricant, 1 oz. Tube) just to put on the plug threads to make the next change easier.
Some of the old plugs were on there pretty tight....but I used a torque wrench when I put them back in and was surprised and how little pressure the recommended torque spec was (11 ft/lb for my car)....if you don't do this all the time, it might be worth it to just get a feel. It was way less than I thought it would be.
Good luck with the job!
For my LS3 (your 2006 has an LS2) I purchased: ACDelco 41-110 Professional Iridium Spark Plug from Amazon for about $5.25 per plug. Amazon has a "this part will fit your vehicle" feature to check for your car.
I also bought "ACDelco 748UU GM Original Equipment Spark Plug Wire Set" for the wires and paid $67 for those (again, for LS3...don't know if your engine needs something different). The wires came with a little tube of goop for the connections.
I also purchase a tube of anti-seize (Permatex 81343 Anti-Seize Lubricant, 1 oz. Tube) just to put on the plug threads to make the next change easier.
Some of the old plugs were on there pretty tight....but I used a torque wrench when I put them back in and was surprised and how little pressure the recommended torque spec was (11 ft/lb for my car)....if you don't do this all the time, it might be worth it to just get a feel. It was way less than I thought it would be.
Good luck with the job!
Le Mans Master
Joined: Jan 2016
Posts: 8,055
Likes: 2,694
From: New Mexico
2018 C6 of Year Finalist
Instructor
Joined: Nov 2003
Posts: 248
Likes: 5
From: Mt. Juliet TN