Georgia Fiero Club Forum

All Things Fiero => Tech Tips, Tech Questions => Topic started by: scottb on September 29, 2019, 04:26:11 pm

Title: 4.9 plugs
Post by: scottb on September 29, 2019, 04:26:11 pm

Anyone have any recommendations on 4.9 plugs? The 4.9 Formula has AC Delco 41-902 in it that need to be replaced. I think that is part of the motors laziness. Any other suggestions?

Title: Re: 4.9 plugs
Post by: GTRS Fiero on September 30, 2019, 06:54:02 pm

What were the stock plugs for the 4.9?

Which PCM are you using?

Title: Re: 4.9 plugs
Post by: scottb on September 30, 2019, 07:11:17 pm

Im not sure what stock is...

It is a stock cadillac compooter

Title: Re: 4.9 plugs
Post by: GTRS Fiero on September 30, 2019, 07:39:37 pm

Probably something like this: RS14YC6

Title: Re: 4.9 plugs
Post by: MikeMac on September 30, 2019, 11:45:52 pm

Quote from: scottb on September 29, 2019, 04:26:11 pm

Anyone have any recommendations on 4.9 plugs? The 4.9 Formula has AC Delco 41-902 in it that need to be replaced. I think that is part of the motors laziness. Any other suggestions?

Are you asking for brand recommendations or a specific plug part number? You can't beat AC Delco in a stock application. Champions Maybe?

Title: Re: 4.9 plugs
Post by: TopNotch on October 01, 2019, 08:00:40 am

I asked my brother Mike. He said he has had his 4.9 Fiero for 3 years, and has never changed the plugs yet. So he doesn't know what they are.