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Differences between 01,02,03 Z06
Thread Starter
Intermediate
Joined: Jul 2009
Posts: 48
Likes: 0
From: Stayner Ontario
Differences between 01,02,03 Z06
Looking for Z06 01 to 03, what are the differences in hp etc, I know there was horsepower change between one of these years to 405, would like some input as to which year to lean towards, hope I am posting this question in the right spot.
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
Stolen from J-Rod @ LS1tech
differences between 2001 & 2002 & up:
1. The LS6 engine standard in the Z06 increased from 385 to 405 horsepower. Torque increased from 385 to 400 lb-ft.
2. Front fender badges for Z06 models included the 405 HP designation.
3. LS6 exhaust back pressure was reduced by 16%
4. Cam shaft was redesigned resulting in increased lift and a 5% increase in air flow
5. Valve spring material composition was changed to increase seat load by 14%.
6. LS6 intake and exhaust valves were a new, lighter design.
7. The valve train weight was reduced by 0.81 pounds, which improved valve seating at high rpm.
8.Airflow over the LS6 MAF sensor was increased by removing grid work
9. MAF software was re calibrated
10. LS6 air cleaner housing had a larger intake
11. Wheels looked the same BUT they were cast spun instead of forged for a weight savings of 1.3 pounds per car
12. rear shock valving was changed
13. Improved clutch
14. Thicker front anti-sway bar
15. New front brake pads
16. HUD was standard (HUD was not avaliable in 2001 cars)
17. 2004 introduced a new fuel system which carries over into the new C6.
The technical details on 2001 vs 2002 can be found here.
http://www.idavette.net/hib/02ls6/index.htm
Former Vendor
Joined: Jan 2007
Posts: 1,584
Likes: 17
From: Lubbock Tx
Safety Car
Joined: Oct 2004
Posts: 4,816
Likes: 132
From: Plano TX
Here is a link that should answer all your questions http://www.corvetteactioncenter.com/...z06/index.html
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Thread Starter
Intermediate
Joined: Jul 2009
Posts: 48
Likes: 0
From: Stayner Ontario
Thanks for the input guys it is appreciated! Anyone else care to add to this jump on in, I'm thinking that an 02 or 03 is the way to go from what I am seeing higher horsepower, not much if any price difference.
Burning Brakes
Joined: Aug 2009
Posts: 945
Likes: 8
From: Olympia WA
I figured last year of the C5, all the bugs that could be worked out were worked out by the last year.
Don't regret it.
Race Director
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
This is from the sticky at the top of the C5/Z06 forum. It takes some reading, but it's all there...
http://forums.corvetteforum.com/c5-z...tions-faq.html
http://forums.corvetteforum.com/c5-z...tions-faq.html
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