LS1 differences from '97-'02? (newbie)
09-05-2004, 08:59 PM
#1
LS1 differences from '97-'02? (newbie) Hey LS1 pros. I am in the process of buying an LS1 engine and M6 transmission but I don't want to end up with the wrong year! I have done some searches and have not come up with much info about the differences and changes in the engine and transmission in the 5 or 6 years or production. I know the later cars had different valve covers and no EGR, but what other internal differences are there? Did any year have higher compression, weak cranks, oiling problems, etc?
My goal is 425rwhp with a performance cam, heads, LT headers, etc so minor changes don't mean much to me, I just want a strong base!
Any advice would be great
My goal is 425rwhp with a performance cam, heads, LT headers, etc so minor changes don't mean much to me, I just want a strong base!
Any advice would be great
09-05-2004, 09:06 PM
#3
Launching!
iTrader: (3)
Join Date: May 2004
Location: El paso, tx
Posts: 285
Likes: 0
Received 0 Likes
on
0 Posts
get the newest one. 02. they have ls6 heads and ls6intake you will get more out of your futuremods. it has smaller cam but it won't matter if you will swap it out. I can't remember if the 01 is the same. oo an below are just ls1's
09-05-2004, 09:06 PM
#4
TECH Fanatic
iTrader: (41)
Join Date: Mar 2004
Location: mass
Posts: 1,514
Likes: 0
Received 0 Likes
on
0 Posts
here u go. this is one of the members on the site.his user name is "jrp"- he has a nice write-up on the differences.
http://www.cardomain.com/memberpage/519275/4
http://www.cardomain.com/memberpage/519275/4
09-05-2004, 09:10 PM
#5
TECH Fanatic
iTrader: (2)
Join Date: Mar 2004
Location: Brownsville, Tx
Posts: 1,460
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by griffz28350
for one, LS1's started in 98, not 97. but do a search on this. there have been plenty of threads started about the differences between them
09-05-2004, 10:42 PM
#7
Originally Posted by shaulinmathvader
get the newest one. 02. they have ls6 heads and ls6intake you will get more out of your futuremods. it has smaller cam but it won't matter if you will swap it out. I can't remember if the 01 is the same. oo an below are just ls1's
If you want the strongest block, try go get one of the 01-02's with an LS6 block and stay away from the 98's. I think you can only bore them so much.
-Todd
Trending Topics
09-05-2004, 11:34 PM
#9
I see a whole lot of misinformation being spread here. If you don't know the answers, you really aren't helping out others by telling them wrong info.
97-98 had relatively the same setup, with EGR and the perimeter bolt valve covers and heads.
99 was first year for the 4-bolt valve covers and heads. Performance-wise, there were no gains over the 97-98.
In 01-02, the LS1s came with the LS6 intake manifold from the factory. Its worth about 5 rwhp on a stock engine. Some 01s had an LS6 engine block, some 02s came with an LS6 engine block. No performance gain from that block.
As for cranks and blocks, no performance/durability difference between the years.
Personally, I'd just go with any year shortblock, but stick with 99 or newer heads. The 4-bolt valvecovers can be modified to have more room to clear aftermarket rockers and such. The flat 97-98 covers had very little room under them.
97-98 had relatively the same setup, with EGR and the perimeter bolt valve covers and heads.
99 was first year for the 4-bolt valve covers and heads. Performance-wise, there were no gains over the 97-98.
In 01-02, the LS1s came with the LS6 intake manifold from the factory. Its worth about 5 rwhp on a stock engine. Some 01s had an LS6 engine block, some 02s came with an LS6 engine block. No performance gain from that block.
As for cranks and blocks, no performance/durability difference between the years.
Personally, I'd just go with any year shortblock, but stick with 99 or newer heads. The 4-bolt valvecovers can be modified to have more room to clear aftermarket rockers and such. The flat 97-98 covers had very little room under them.
09-06-2004, 12:33 AM
#10
Originally Posted by Nine Ball
I see a whole lot of misinformation being spread here. If you don't know the answers, you really aren't helping out others by telling them wrong info.
...
Personally, I'd just go with any year shortblock, but stick with 99 or newer heads. The 4-bolt valvecovers can be modified to have more room to clear aftermarket rockers and such. The flat 97-98 covers had very little room under them.
...
Personally, I'd just go with any year shortblock, but stick with 99 or newer heads. The 4-bolt valvecovers can be modified to have more room to clear aftermarket rockers and such. The flat 97-98 covers had very little room under them.
One question though Nine Ball. If I am going to buy a new performance cam and aftermarket heads (not sure who has the best ones), will it make a difference if I buy a 97-98 or a 99up?
Thanks
09-06-2004, 12:55 AM
#11
Originally Posted by V8er
One question though Nine Ball. If I am going to buy a new performance cam and aftermarket heads (not sure who has the best ones), will it make a difference if I buy a 97-98 or a 99up?
Thanks
Thanks
Also, I think anymore the 97/98 heads are pretty obsolete as most companies don't have sets laying around reading for shipping - which would lead me to beleive they are r&r only. Someone correct me if I'm wrong on that info.
09-06-2004, 01:02 AM
#12
Originally Posted by Nine Ball
I see a whole lot of misinformation being spread here. If you don't know the answers, you really aren't helping out others by telling them wrong info.
97-98 had relatively the same setup, with EGR and the perimeter bolt valve covers and heads.
99 was first year for the 4-bolt valve covers and heads. Performance-wise, there were no gains over the 97-98.
In 01-02, the LS1s came with the LS6 intake manifold from the factory. Its worth about 5 rwhp on a stock engine. Some 01s had an LS6 engine block, some 02s came with an LS6 engine block. No performance gain from that block.
As for cranks and blocks, no performance/durability difference between the years.
Personally, I'd just go with any year shortblock, but stick with 99 or newer heads. The 4-bolt valvecovers can be modified to have more room to clear aftermarket rockers and such. The flat 97-98 covers had very little room under them.
97-98 had relatively the same setup, with EGR and the perimeter bolt valve covers and heads.
99 was first year for the 4-bolt valve covers and heads. Performance-wise, there were no gains over the 97-98.
In 01-02, the LS1s came with the LS6 intake manifold from the factory. Its worth about 5 rwhp on a stock engine. Some 01s had an LS6 engine block, some 02s came with an LS6 engine block. No performance gain from that block.
As for cranks and blocks, no performance/durability difference between the years.
Personally, I'd just go with any year shortblock, but stick with 99 or newer heads. The 4-bolt valvecovers can be modified to have more room to clear aftermarket rockers and such. The flat 97-98 covers had very little room under them.
-Todd
09-06-2004, 09:21 AM
#14
Copy & Paste Moderator
Originally Posted by Nine Ball
I see a whole lot of misinformation being spread here.
-----
97-98 had relatively the same setup, with EGR and the perimeter bolt valve covers and heads.
-----
97-98 had relatively the same setup, with EGR and the perimeter bolt valve covers and heads.
Regaring F-bodies:
The 1997 motor and the 1998 motor are completely different. The 1997 F-bodies had a LT1 whereas the 1998 F-bodies had a LS1.
09-06-2004, 08:30 PM
#20
Copy & Paste Moderator
Originally Posted by Nine Ball
The LS1 started in 97 - in the Corvette.
Originally Posted by Nine Ball
Wise ***.
It wasnt a personal attack, just a jab at a senior member (correction, Admin).