Spark plugs
Thread Starter
5th Gear
Joined: Jan 2006
Posts: 5
Likes: 0
Spark plugs
Got an 85 c4 here, and want to change the plugs. What plugs are you guys running, and what are you gapping them at. This will be on a pretty much stock vette. Also, what wires are you guys using.
Thanks in advanced
Brian
Thanks in advanced
Brian
Melting Slicks
Joined: Jan 2001
Posts: 2,940
Likes: 5
From: Chesapeake VA
I've been using stock plugs and wires. The plugs can be gotten at mosts parts stores for $2 each.
If you haven't changed plugs on a C4 before, and you have the stock exhaust manifolds, do a search on how to change the plugs, and you will find the easy way to get at plugs 2 & 4.
If you haven't changed plugs on a C4 before, and you have the stock exhaust manifolds, do a search on how to change the plugs, and you will find the easy way to get at plugs 2 & 4.
Thread Starter
5th Gear
Joined: Jan 2006
Posts: 5
Likes: 0
Originally Posted by byebyeL98
I've always had good luck with NGK plugs. I have the plugs in my '87 383 gapped at .040" (factory gap is .035"). I use the MSD wires.
Race Director
Joined: Jul 2004
Posts: 16,795
Likes: 62
From: Lake Havasu City, AZ
Biggest question is how often do you want to skin your knuckles changing them??
Copper = cheaper= more ferquent changes= more skinned knuckles...
Platinum = more expensive = less frequent changes= more skin left
Irridium = even more expenisive .
I use platiumums
DO NOT use platinums that have "pucks" on the end of the electrode... the pucks are known to fall off...
I use Bosch Platinum +4's they work for me...instant start and smooth idle.
A number of people on this forum don't like them.
Many will recommend to stick with plain old AC Delco Copper plugs.
Copper = cheaper= more ferquent changes= more skinned knuckles...
Platinum = more expensive = less frequent changes= more skin left
Irridium = even more expenisive .
I use platiumums
DO NOT use platinums that have "pucks" on the end of the electrode... the pucks are known to fall off...
I use Bosch Platinum +4's they work for me...instant start and smooth idle.
A number of people on this forum don't like them.
Many will recommend to stick with plain old AC Delco Copper plugs.
Safety Car
Joined: Sep 2003
Posts: 3,599
Likes: 24
From: Orange County NY
St. Jude Donor '10-'11-'12-'13
Originally Posted by JUICEDLS1
I usually use ngk or densos. What kind of ngk are you using? I run tr6's in the trans am, and used to run tr6's in the lightning as well, is that what you are using, or are you using another plug.
I had a set of Denso iridium plugs in my '98 Toyota Land Cruiser that looked pretty damn good after 70,000 miles, so I went with them again.
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Safety Car
Joined: Feb 2000
Posts: 3,529
Likes: 1
From: Howell N.J. Home of Redgar
Cruise-In II Veteran
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I went to Cruise-In V with Vetteweiser
Bosch Plat +4's...quick start and smooth ...and Taylor 8mm wires ...no complaints .. 