Jump to content
Forums Gone... but not forgotten!
Pontiac of the Month

PONTIAZI's 1987 Firebird Trans Am GTA

2023 September
of the Month

  • Welcome!

    Welcome to Forever Pontiac, where we keep the memory of Pontiac alive with great discussion, maintenance tips, restoration/modification progression "blogs" and help from professional & DIY mechanics. Also, wonderful competitions that occur regularly. Please register for an absolutely free account to join in!

Recommended Posts

I recently picked up an 04 GTP and it’s definitely needing attention…..looking for suggestions for the best plugs for that supercharged engine.  It’s currently running like a corn cob and I want to get it back to it’s potential so any suggestions or info would help.  

04 GP GTP with 128K on the clock looks PRETTY but runs bad!!!  

Link to comment
Share on other sites

Tired of these Ads? Register Today!

Everyone has their personal preference when it comes to spark plugs.....

Factory OEM plugs are AC Delco Iriduim 41-101

Other plugs that people swear to are that fit your car are:

NGK 7164 Iriduim

CHAMPION 9404 Iriduim

AC Delco 14 Platinum

NGK 3403 Platinum

CHAMPION 3013 Platinum

There are copper core plugs available at much less cost, but considering that your car is supercharged AND came with iriduim plugs, I would not got with anything less than platinum tipped plug for simple longevity.

Others are welcome to chime in on their favorite plugs as well.




Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Tired of these Ads? Purchase Enhanced Membership today to remove them!
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.