C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Spark plugs.

Thread Tools
 
Search this Thread
 
Old Jun 24, 2009 | 10:28 AM
  #1  
dancin1's Avatar
dancin1
Thread Starter
Instructor
10 Year Member
 
Joined: Aug 2008
Posts: 204
Likes: 0
From: Lake Placid Florida
Default Spark plugs.

I just got the plugs from Mr Gene Culley, GM Partshouse and they weren't gapped, so I looked up the gap on the front left inner fender and it said .060 These are the AC Delco Professional, Iridium plugs. It's been a long time I've since I'vw gapped anything other than a Harley or a lawn mower plug and am wondering if that's correct ? .060 seems pretty wide, like twice as wide as the others...Is that right ?
Reply
Old Jun 24, 2009 | 10:41 AM
  #2  
ttribe's Avatar
ttribe
Racer
 
Joined: Jul 2008
Posts: 264
Likes: 0
From: Spring Tx
Default

i think most people will say 38 to 45
Reply
Old Jun 24, 2009 | 11:31 AM
  #3  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,245
Likes: 1,091
From: Dyer, IN
Default

Originally Posted by dancin1
I just got the plugs from Mr Gene Culley, GM Partshouse and they weren't gapped, so I looked up the gap on the front left inner fender and it said .060 These are the AC Delco Professional, Iridium plugs. It's been a long time I've since I'vw gapped anything other than a Harley or a lawn mower plug and am wondering if that's correct ? .060 seems pretty wide, like twice as wide as the others...Is that right ?
Those plugs are pre-gapped at .040, so no action is required. . If you use one of those old school gapping tools, you'll ruin the iridium electrode.
Reply
Old Jun 24, 2009 | 11:37 AM
  #4  
2KFRC5's Avatar
2KFRC5
Safety Car
10 Year Member
 
Joined: Nov 2000
Posts: 4,419
Likes: 6
From: Arroyo Grande CA
Default

Also, the plug # should be 41-985. for the iridiums. http://www.acdelco.com/parts/sparkpl...l-platinum.jsp says the Professional line is platinum.
Reply
Old Jun 24, 2009 | 12:05 PM
  #5  
mrm1149's Avatar
mrm1149
Le Mans Master
Supporting Lifetime
15 Year Member
 
Joined: Oct 2004
Posts: 9,369
Likes: 4
From: Zephyrhills, Florida
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13
Default

Originally Posted by lucky131969
Those plugs are pre-gapped at .040, so no action is required. . If you use one of those old school gapping tools, you'll ruin the iridium electrode.
Good choice for a plug also..........
Reply
Old Jun 27, 2009 | 12:10 AM
  #6  
Gene Culley's Avatar
Gene Culley
Premium Supporting Vendor
 
Joined: Nov 2006
Posts: 30,317
Likes: 165
From: Reading PA
Default

Yes, since they are Iridium, they require a different gap .040
Reply

Get notified of new replies

To Spark plugs.





All times are GMT -4. The time now is 04:28 PM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE