[Z06] Spark Plug Question

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Mar 16, 2008 | 08:20 PM

EHSZ06

Thread Starter

Instructor

Joined: May 2007

Posts: 205

Likes: 0

From: Sanford Florida

Spark Plug Question

I am going to change out my spark plugs and wires tomorrow and was just wondering what spark plugs you guys were running. I was also wondering what gap I should set it at? All I have right now are longtube headers so I don't know if that makes a difference in what gap I should set it at. Thanks guys!

Mar 17, 2008 | 02:31 AM

EHSZ06

Thread Starter

Instructor

Joined: May 2007

Posts: 205

Likes: 0

From: Sanford Florida

Nobody can suggest a spark plug and a gap size?? I realize it is personal preference but I would just like some suggestions

Mar 17, 2008 | 09:00 AM

falcon5619

Burning Brakes

Joined: Sep 2007

Posts: 1,048

Likes: 300

From: FL

I beleive it depends on the actual plug you purchase. Many use the NGK TR55, which has a .55 gap. Most leave this gap as is. If you use an iridium plug, the factory gap may be different, which most leave as is.

Mar 17, 2008 | 09:17 AM

The Wanderer

Melting Slicks

Joined: Feb 2001

Posts: 2,562

Likes: 1

From: (Temporarily) Colorado Springs Colorado

As found in your friendly owners manual ...

6-76
Normal Maintenance
Replacement Parts
Engine Air Cleaner/Filter A917C* . . . . . . . . . . . . . .
Engine Oil Filter PF44* . . . . . . . . . . . . . . . . . . . . . . .
PCV Valve CV948C* . . . . . . . . . . . . . . . . . . . . . . . . .
0.060 inch (1.524 mm)
Spark Plug 41-974 (0.060 inch Gap)* . . . . . . . . . . .
Windshield Wiper Blade
Length 22 inches (55.9 cm) . . . . . . . . . . . . . . . . . . . .
Type 9 mm x 3 mm Shepherd’s Hook . . . . . . . . . . . .
* ACDelco part number.

Mar 17, 2008 | 11:28 AM

Bigstik

Burning Brakes

Joined: Apr 2007

Posts: 1,030

Likes: 1

From: Douglasville Ga

I use the Bosch Iridium Fusion plugs. $8 a pop with the factory gap settings.

Mar 17, 2008 | 11:53 AM

BlueRag

Pro

Joined: Dec 2003

Posts: 651

Likes: 1

From: Z16 #1990 Ridgecrest CA

I use NGK TR55IX gapped at ~.056"....... I've been using them for about 4 years in the two different Vette's I've owned.

Mar 17, 2008 | 11:55 AM

jbauch357

Melting Slicks

Joined: Jul 2006

Posts: 2,094

Likes: 5

From: The 7th layer of hell - Western Washington

I run headers so it's pretty easy to swap plugs, for that reason I run NGK TR55 copper core plugs and replace them every 30k or so. At under $2 per plug it's pretty cheap to do too. Oh, I run 0.060" gap on mine...