Litl T&A

What are the best plugs and wires for a 1998 Pontiac Trans Am with the LS-1?
Thanks,
Litl T&A

DirtyBirdMKE

NGK TR55

MSD Superconductor wires

chrysler kid

iTrader: (14)

Don't bother with msd they cost double what other brands do. Ngk tr555 plugs and auto zone wires are my choice

ska4life07

iTrader: (2)

TR55 are good. You can buy them from just about any aftermarket site or local parts store. I have mad wires, but I also agree with the above post on here.

ponchjoe

When I looked up plugs on NGKs we site they didn't list the TR55 as a plug that fits a 2000, are they different than a 98?

RPM WS6

iTrader: (3)

No, they are exactly the same. TR55 will fit any year LS1. I believe the stock number for the correct plug is #3951.

I like the TR55s or the AC Delco Iridiums. I'm using both of these right now and am happy with both. The TR55s are cheaper, but won't last as long.

Due to the high powered ignition and short distance between the coils and plugs, I've never seen any improvements from aftermarket wires on these engines.

ponchjoe

This is what I see on NGKs site so what are TR55s?

2000 PONTIAC FIREBIRD FORMULA 5.7 V8 G FI

Spark Plug
Part No.
Stock No.
Plug Gap
Photo
V-Power TR5
2238
.040

G-Power TR5GP
3186
.040

Laser Platinum PTR5D-10 *
3784
.040

OE Laser Iridium IZTR5B11 ^
1465
.040

Iridium IX TR5IX
7397
.040

* “Laser Series” Platinum center electrode, and Platinum pad ground electrode

RPM WS6

iTrader: (3)

TR55s are the same heat range plug as the TR5s, but they come with a larger gap (.059"), closer to the original plug gap for these engines.

They are stock #3951. They will fit any LS1 engine. I've had them in 806, 853, and 241 heads.

DirtyBirdMKE

o got my Tr55 plugs at Oreillys... they didnt come up for my 98 TA... they came up on accident when the counter guy when he searched pontiac "Trans Port" minivan... same part number 3951 and everything

M4N14C

iTrader: (3)

Ordered some TR55 Iridiums after lots of research. good performance and should last a while. Changing plugs is not something you want to do often

ponchjoe

What's p/n for iridiums?
Thanks

ponchjoe

What's p/n for iridiums TR55s?
Thanks

Orange Juice

iTrader: (3)

Funny, a friend and I were talking about plug wires both having spent a stupid amount of money on wires and our conclusion is the stock probably work as well as any.

M4N14C

iTrader: (3)

This explains things pretty well.

demonspeed

iTrader: (7)

I'm happy with my GMPP wires and ACDelco Iridiums

FiredUpZ28

Without forced induction or nitrous I'd go Delco plugs for sure, and last time I did a tuneup I found 8 LS3 wires removed when they were brand new for like 20-30 bucks on Ebay. Couldnt pass it up.

sjsingle1

iTrader: (1)

i have granetelli wires and champion IRs.....perfect combo i think