C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

1969 corvette spark plugs

Thread Tools
 
Search this Thread
 
Old 02-25-2002, 06:10 PM
  #1  
Blane Johnson
Heel & Toe
Thread Starter
 
Blane Johnson's Avatar
 
Member Since: Feb 2002
Location: Houston Texas
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
Default 1969 corvette spark plugs

i'm having a problem with ac delco spark plugs. the problem is i set the gap at .035. I ran the car wide open 2 or 3 times and checked the gap again. they were off again. has anyone heard of this ? what spark plugs should i use? thanks , blane :confused:
Old 02-25-2002, 10:57 PM
  #2  
stingray72
Burning Brakes
 
stingray72's Avatar
 
Member Since: Apr 2000
Location: trumbull ct
Posts: 870
Likes: 0
Received 0 Likes on 0 Posts
Default Re: 1969 corvette spark plugs (Blane Johnson)

AC plugs suck. I don't know what would make the gap close up except a piston contact with the plug. Are you sure they are the right plugs? I ALWAYS used Autolite plugs, they last the longest -- by far. In your car, if it is a SB, use Autolite #86, gapped at .035. Will run like a champ, guaranteed.

George
Old 02-25-2002, 11:09 PM
  #3  
Corz
Team Owner
 
Corz's Avatar
 
Member Since: Sep 2001
Location: Middletown Connecticut
Posts: 30,958
Likes: 0
Received 0 Likes on 0 Posts
Cruise-In IV Veteran

Default Re: 1969 corvette spark plugs (stingray72)

i use R44 when its really hot and muggy, R45 for mid spring nites, and R46 for those tit bit nipply days.. works great for WOT runs
Old 02-25-2002, 11:15 PM
  #4  
Pete79L82
Drifting
 
Pete79L82's Avatar
 
Member Since: Oct 2000
Location: WI
Posts: 1,771
Likes: 0
Received 2 Likes on 2 Posts

Default Re: 1969 corvette spark plugs (Blane Johnson)

i'm having a problem with ac delco spark plugs. the problem is i set the gap at .035. I ran the car wide open 2 or 3 times and checked the gap again. they were off again.
How much were they off?
Old 02-25-2002, 11:40 PM
  #5  
Barry's70LT1
Drifting
 
Barry's70LT1's Avatar
 
Member Since: Oct 2001
Location: Halifax, Nova Scotia, Canada
Posts: 1,865
Received 831 Likes on 242 Posts

Default Re: 1969 corvette spark plugs (Blane Johnson)

AC used to be a good plug. Not any more !!
44's are no longer available in Canada.

The 43's I looked at last summer were made in Mexico and were absolutely
trash.
Relative to your problem, many of the 43's had the center electrode loose, along with other problems.
I can believe you can't keep them gapped.

Barry

Get notified of new replies

To 1969 corvette spark plugs




Quick Reply: 1969 corvette spark plugs



All times are GMT -4. The time now is 08:11 AM.