What spark plugs are you guys using in them g-body's

[trevorjm]

I got AC Delco too, the box said platinum or something? I just figured keeping everything delco would be best.

 

[GuysMonteSS]

I use AC Delco in my big block.
Guy

 

[jrm81bu]

Ac Delco, NGK are the only plugs i will use. Autolite plugs i tried to use in the past but have had problems with them being defective as to where they wouldnt even fire. Thats a long torture story in its own.

x2, pretty much the same deal here. NGK in anything performance, and Delco in anthing stock. Although i'm starting to use NGK in everything. I have ran Autolite Racing plugs in a pinch(in stock when the NGK's I want aren't) but they seem to have a tendency to foul out.

 

[Longroof79]

I've been using NGK V-power plugs for several plug changes. They also have good header clearance. I like 'em. :wink:

 

[othtim]

Champion Coppers. RS14YC w/ vortec heads. I prefer champion plugs because they are cheap. That way when they break down in a month I dont feel bad shelling out another 10 bux to replace them

 

[bill]

Mondello says NGK for the SBO,BBO..XR-5 "easy to find and read after use", or AC/Delco R-45-S or R-43-S. Im using the iridium R43SX for my HEI on pump gas.

 

[maddog20_20]

Delco R44LTS (long ones) for the vortec heads

 

[tc1959]

AC Delco #1 Rapid fire platinums.