Pontiac Firebird 1967-2002 Birds of a feather flock together

98 WS6 vs 02 WS6

Thread Tools
 
Search this Thread
 
Old Nov 12, 2008 | 07:18 AM
  #1  
95TAGary's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Aug 2006
Posts: 640
Likes: 2
From: KY
Default 98 WS6 vs 02 WS6

I'm looking to buy a 98 or 99 WS6 over the Winter and wanted to know if there's a difference in the 98 vs 02 WS6 as far as LS1 power or suspension or anything else that's important? I have a 95 but wanted a LS1 to mod. Don't know a lot about LS1's but would like to have more power. Has the Ls1 engine changed during 98-02? Thanks
Reply
Old Nov 12, 2008 | 03:21 PM
  #2  
WS6 Rampage's Avatar
TECH Addict
iTrader: (3)
 
Joined: Feb 2006
Posts: 2,498
Likes: 3
From: The dirty taint of the country. ...Los Angeles
Default

...You can do a search on this. Its been spoken about in several threads already. There are a few differences but nothing huge in the power department. Biggest differences (if not only) would be the use of the LS6 intake and a slightly smaller cam in 01-02s as opposed to the LS1 intake and standard cam in the 98-00s. I think the power bump is a meager 10-15 advertised hp. ... Personally, from what others have said I'd stay away from the 98. Nothing but problems from what I've heard. Plus, the 98 heads are an inferior design to the 99-02 heads.
Reply
Old Nov 12, 2008 | 03:46 PM
  #3  
TheBlueKnight's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: Sep 2008
Posts: 1,971
Likes: 2
From: Nevada
Default

What he said ^^^^ Plus the 01'/02' cars got rid of the EGR, have an improved starter, have the upgraded LS6 hydrualics, and LS6 clutch which had 25% more clamping power than the pre 01' f-bodies. And as stated, 1998 trans ams are harder to find a tuner for.
Reply
Old Nov 12, 2008 | 05:34 PM
  #4  
1FASTBIRD's Avatar
TECH Fanatic
iTrader: (21)
 
Joined: Oct 2004
Posts: 1,435
Likes: 0
From: San jose, CA
Default

If I was you I would just go with a 01 or 02 because then you don't have to worry about the EGR tube that goes into the intake... Also I think cam thing is overrated as more then likely you will upgrade it anyway....
Reply
Old Nov 13, 2008 | 12:26 PM
  #5  
JohnnyBs98WS6Rag's Avatar
TECH Addict
Photogenic
Shutterbug
Liked
Community Favorite
iTrader: (1)
 
Joined: Jul 2005
Posts: 2,500
Likes: 370
From: NE Indiana
Default

Originally Posted by WS6 Rampage
...You can do a search on this. Its been spoken about in several threads already. There are a few differences but nothing huge in the power department. Biggest differences (if not only) would be the use of the LS6 intake and a slightly smaller cam in 01-02s as opposed to the LS1 intake and standard cam in the 98-00s. I think the power bump is a meager 10-15 advertised hp. ... Personally, from what others have said I'd stay away from the 98. Nothing but problems from what I've heard. Plus, the 98 heads are an inferior design to the 99-02 heads.
HP rating is only 5hp higher on the '01-'02 than the '98-'00 f-bods (305 vs 310 on Z28, Formula, T/A, 320 vs 325 on SS, WS6).

I don't think the '98s have had any significant problems vs the later years. True, the '98 requires a different tuner. But the only difference in the head design is a different cover bolt pattern (combustion chamber is the same), no way is that "inferior". Fuel injectors on the '98s are larger than '99+. Also, the '98-early '00 WS6 suspension contains more upgraded 1LE parts than the later '00-'02s (it was softened down a tad). And all the LS6 hydraulics in the clutch are a wash if you get an A4. The stock '98 WS6 SOTL exhaust flowed better than the '99+.
Reply
Old Nov 13, 2008 | 04:19 PM
  #6  
JD_AMG's Avatar
TECH Senior Member
 
Joined: Jan 2004
Posts: 5,798
Likes: 16
From: St.Charles MO
Default

Originally Posted by 95TAGary
I'm looking to buy a 98 or 99 WS6 over the Winter and wanted to know if there's a difference in the 98 vs 02 WS6 as far as LS1 power or suspension or anything else that's important? I have a 95 but wanted a LS1 to mod. Don't know a lot about LS1's but would like to have more power. Has the Ls1 engine changed during 98-02? Thanks
Read all the stickies:
https://ls1tech.com/forums/new-ls1-o...questions.html
Reply
Old Nov 13, 2008 | 04:43 PM
  #7  
jp74's Avatar
10 Second Club
iTrader: (3)
 
Joined: Oct 2006
Posts: 402
Likes: 6
From: USA
Default

Yeah the stickies will give you all the info you are looking for. Not much difference at all. I have had a 98 for 3 years with zero problems and I run in the 11's without nitrous. Hopefully you can find a LS1 that has been well cared for, that is the more important. I bought my 98 for 7500 dollars with 56k on the clock. I was looking at a 2002 with 40k and they wanted 14500 at the time. I saved the 7000.00 and put some of it toward mods. Good luck
Reply
Old Nov 13, 2008 | 06:12 PM
  #8  
DVS99TRANS's Avatar
TECH Fanatic
iTrader: (7)
 
Joined: Nov 2005
Posts: 1,169
Likes: 1
From: E City,NC & Newark,DE
Default

Well just to give you an idea of how they respond to mods. My plain jane 99 and 01 WS6 where dynoed with SLP Loudmouths only. My 99 put down 317whp/327wtq and my WS6 put down 309/320 on the same exact dyno with the same atmospheric conditions. They will make the same power and if you can catch a hell of a deal on a plain jane TA/Z28. You have to figure the intake manifold/clutch and hydraulics/air inlet(no lid) are better on the WS6. If you plan on big power, you'll end up swapping out the better parts that come on the 01 and 02 models. Just some food for thought.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Nov 14, 2008 | 03:51 PM
  #9  
2000Hawk's Avatar
TECH Addict
iTrader: (5)
 
Joined: Jan 2004
Posts: 2,458
Likes: 0
From: Miami, Fl. - Hurricane Highway
Default

I would shoot for 01-02 like everyone else has stated. LS6 intake manifold is a plus, especially when you have added a few bolt ons. The newer version slave cylinder is also a huge plus. Also the '01-'02 cars had the stronger connecting rod bolts from the factoty i believe. That and im sure you can find a low mileage LS1 for a very nice price. Not saying theres anything wrong with the '99 and '00, mine is a '00 and its great. But if you got the money then you might as well settle for the years that had the better factory equipment. The 98 were the first model year with the LS1 so they are prone to having more problems than other years. Nothing wrong with them either, but just so you don't go crazy when things are acting up.
-Joel
Reply
Old Nov 15, 2008 | 06:08 AM
  #10  
Bird Man's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: May 2002
Posts: 1,298
Likes: 0
From: Perrysburg,Ohio
Default

Find an 02 --it's the last year model.
Reply
Old Nov 16, 2008 | 04:33 PM
  #11  
Texastransam's Avatar
Teching In
iTrader: (4)
 
Joined: Dec 2007
Posts: 26
Likes: 0
Default

My '98 is great! of course the GM crate LS6, two paint jobs, a new interior, suspension, wheels, hood, and other stuff helps. Yeah, maybe you should find a 2002.
Reply




All times are GMT -5. The time now is 02:31 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE