I was going to go back with the stock A/C's
best spark plug LT1
Burning Brakes
Joined: Sep 2005
Posts: 982
Likes: 0
From: IN
Can't help you with reaching the driver's side plugs, but I used the Bosch Platinum +4's and so far so good....however, I have read where a lot of people say stick with what the General put in them from the factory.
Le Mans Master
Joined: Mar 2000
Posts: 8,950
Likes: 4
From: Lafayette LA
I have used AC Delco Rapidfires in every high perfomance engine I have owned, and never had any problems. That's what'll be going in my new LT1.
I know there are other plugs out there just as good, but Delcos are my preference.
The only plug I have ever had problems out of was a Bosch Platinum. The Bosch Platinums have a very small tip sunk into the ceramic insulation, and it doesn't take anything to foul one out. They probably work well in brand new engines, but don't put them in anything with high mileage.
I know there are other plugs out there just as good, but Delcos are my preference.
The only plug I have ever had problems out of was a Bosch Platinum. The Bosch Platinums have a very small tip sunk into the ceramic insulation, and it doesn't take anything to foul one out. They probably work well in brand new engines, but don't put them in anything with high mileage.
Race Director
Joined: Feb 2003
Posts: 11,671
Likes: 20
From: Lake Wylie SC
I use the TR55IX from NGK and they work fine. I made a plug wrench from an extra 9/16 box end wrench and welding a short socket to it. Works great on good ole #8.
Oh, some guys have reported that the AC Delco plats sometimes lose their pucks causing a huge gap and rough idle.
Oh, some guys have reported that the AC Delco plats sometimes lose their pucks causing a huge gap and rough idle.
Last edited by Strick; Dec 19, 2006 at 10:17 AM. Reason: added text
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Le Mans Master
Joined: Aug 2004
Posts: 5,141
Likes: 7
From: Metairie Louisiana
I just installed NGK TR6's. The car seems to idle a little better than before. I just changed my plugs last saturday. Check out my other thread.
http://forums.corvetteforum.com/show....php?t=1577296
http://forums.corvetteforum.com/show....php?t=1577296
Drifting
Joined: Jun 2002
Posts: 1,305
Likes: 11
From: Savannah Ga.
It's been quite awhile since I've seen a " what's the best" this or that thread!
Burning Brakes
Joined: Dec 2005
Posts: 805
Likes: 11
From: Hickory Flat Ga
I put 40,000 on AC Delco Platinums and replaced with NGK Tr55 IX. The Delcos looked near new with no missing pucks. This car has never stumbled due to ignition. I hammer it occasionally. The NGKs may idle a little bit smoother but performance is the same. They make plasma not just a spark. (That's what the ad said.......)
$60 for the last plugs I'll ever buy for it isn't bad.
$60 for the last plugs I'll ever buy for it isn't bad.
Race Director
Joined: Feb 2001
Posts: 13,911
Likes: 101
From: Manassas VA
NoVa Events Coordinator
St. Jude Donor '14
