difference in LS1 years
Joined: Nov 2001
Posts: 34,643
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From: Schiller Park, ILL Member: #317
Originally Posted by BLKWS.6
The 01+ got....bigger injectors....
98-00 had different exhaust manifolds
01-02 got pup-cats and deleted the EGR
'98-'99 had different manifolds. '00+ got the new ones.
No "pup" cats on F-bodies. That's a vette only deal. All years LS1 F-body had only 2 cats (one per engine bank).
Joined: Nov 2001
Posts: 34,643
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From: Schiller Park, ILL Member: #317
Originally Posted by nissanic89
thanks guy, so just curious can you swap oil pump?
Originally Posted by LS1DER
I love the threads talking about the differences in the 98-02 ls1's 
I just seem to get more confused about all the differences.
I just seem to get more confused about all the differences.
-just when I think I got it down
on that link posted with all the differences on it, it says in 2000 there was a smaller cam and injectors. is the smaller cam the vortec truck cam mentioned in the 01+, or is it just different than the 98 99 01 02?
Joined: Nov 2001
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From: Schiller Park, ILL Member: #317
Originally Posted by KW4life06
on that link posted with all the differences on it, it says in 2000 there was a smaller cam and injectors. is the smaller cam the vortec truck cam mentioned in the 01+, or is it just different than the 98 99 01 02?
The '99-'00 cars do have smaller injectors than '98 or '01-'02, but the '98-'00 cam is all the same. It's the '01+ that gets the smaller cam.
Hope that clears things up for you.
Thread Starter
Teching In
Joined: Sep 2006
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From: dayton o-hi-ho
Originally Posted by RPM WS6
Never noticed that before.
The '99-'00 cars do have smaller injectors than '98 or '01-'02, but the '98-'00 cam is all the same. It's the '01+ that gets the smaller cam.
Hope that clears things up for you.
The '99-'00 cars do have smaller injectors than '98 or '01-'02, but the '98-'00 cam is all the same. It's the '01+ that gets the smaller cam.
Hope that clears things up for you.
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Banned
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Originally Posted by KW4life06
which cam was better for performance? the 98-00 or 01+
They aren't any faster stock for stock though, because the '01+ cars had the addition of the LS6 intake manifold over the '98-00 LS1 manifold, so it evens out with the cam.
On The Tree
Joined: Feb 2005
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From: Canton, OH
Originally Posted by TransAminal
Considering the '98 cam is higher lift and duration than the '01+ cam, I'd say the '98 will offer better performance, all other things being equal.
They aren't any faster stock for stock though, because the '01+ cars had the addition of the LS6 intake manifold over the '98-00 LS1 manifold, so it evens out with the cam.
They aren't any faster stock for stock though, because the '01+ cars had the addition of the LS6 intake manifold over the '98-00 LS1 manifold, so it evens out with the cam.
Joined: Nov 2001
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From: Schiller Park, ILL Member: #317
Originally Posted by 2001stripper
The cam in 01-02 f-bodies are the same ones used in the 6.0L Chevy Truck. They may make very slightly less horsepower but they more than make up for it in torque production. My car made 346 rwhp and 364 rwtq with the only power addition being full exhaust.
Banned
Joined: Apr 2006
Posts: 1,875
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From: Naperville, IL
this thread needed ONE response!
https://ls1tech.com/forums/new-ls1-owners-newbie-tech/213148-jrp-s-faq-commonly-asked-questions.html
Read the stickies! This particular sticky is even in THIS forum.
https://ls1tech.com/forums/new-ls1-owners-newbie-tech/213148-jrp-s-faq-commonly-asked-questions.html
Read the stickies! This particular sticky is even in THIS forum.
Joined: Nov 2001
Posts: 34,643
Likes: 2,571
From: Schiller Park, ILL Member: #317
Originally Posted by Asmodeus
this thread needed ONE response!
https://ls1tech.com/forums/showthread.php?t=213148
Read the stickies! This particular sticky is even in THIS forum.
https://ls1tech.com/forums/showthread.php?t=213148
Read the stickies! This particular sticky is even in THIS forum.
I have a 2001 WS6 with LS1 and LS6 intake manifold. I used to get ticking and knocking noises pretty bad. After extensive research, testing and parts replacements at the local dealership, they couldn't figure out what was still causing the problem. Sounded like a lifter so they replaced my lifters. Noise still came back. Few more times in the shop with more parts being replaced, the noise still wouldn't go away. They brought out a GM rep who decided it was time and I was favorable for a new long block. They kept my car for a week and got it all back together and the noise was gone. Every once in a while it would show up but nothing like it would with the old engine.
Come to find out that all 2001 LS1 engines in Camaros, Trans Ams, Firebirds, and Vettes had different valves and springs in them that were lighter saving some weight and at the same time allowing it to rev up higher faster. With that being said, that's what contributed to my oil consumption I saw. I was using at least a quart of oil a month adding to it. I didn't rev like I used to anymore which was sad, but I didn't go through oil like I used to either. I have tuned it and modified the car now that it doesn't matter.
I love having my engine have half the amount of miles on it that my car has!
Come to find out that all 2001 LS1 engines in Camaros, Trans Ams, Firebirds, and Vettes had different valves and springs in them that were lighter saving some weight and at the same time allowing it to rev up higher faster. With that being said, that's what contributed to my oil consumption I saw. I was using at least a quart of oil a month adding to it. I didn't rev like I used to anymore which was sad, but I didn't go through oil like I used to either. I have tuned it and modified the car now that it doesn't matter.
I love having my engine have half the amount of miles on it that my car has!
