[Z06] Visual difference between 01 and 02+ LS6's?
Thread Starter
Pro
Joined: Jun 2001
Posts: 528
Likes: 146
From: Palmyra NY
Visual difference between 01 and 02+ LS6's?
Is there any way to tell the difference between the '01 and '02+ LS6's? Mine was replaced in my '01, and I am curious if they used another '01, or updated (it was replaced in '03 through GM).
Drifting
Joined: May 2000
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From: Long Island NY
The exhaust manifolds are slightly different on the '02 and later, although they could have kept your original exhaust manifolds. Other than that, I can't think of any external visual differences - the rest of the changes are all inside the engine and can't be seen.
There must be a way to look up what year the engine is from the serial number or casting number on the block and/or heads though.
There must be a way to look up what year the engine is from the serial number or casting number on the block and/or heads though.
Le Mans Master
Joined: Jun 2001
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From: Admit Nothing, Deny Everything, Make Counter Accusations.
Originally Posted by JGreen
Is there any way to tell the difference between the '01 and '02+ LS6's? Mine was replaced in my '01, and I am curious if they used another '01, or updated (it was replaced in '03 through GM).
Thread Starter
Pro
Joined: Jun 2001
Posts: 528
Likes: 146
From: Palmyra NY
Originally Posted by rbartick
If this was done via warranty work then I would bet that they installed the 385 HP version.
Race Director
Joined: Aug 2000
Posts: 10,649
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From: Central Florida
Not definitive, but check the MAF. If it has a screen, it's a 2001. The screen was omitted in 2002.
Here is the best portrayal of 01 v 02 Z06s. You'll need to wade through it for the visible stuff.
Ranger
Here is the best portrayal of 01 v 02 Z06s. You'll need to wade through it for the visible stuff.
Ranger
Race Director
Joined: Aug 2000
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From: Central Florida
Originally Posted by rbartick
People pull the screen on the 2001 cars, plus it is possible that the screen could have been left in even if a 2002+ motor was installed.
Another way is to read and new-post the ESN (engine serial number). Someone with access to the power train data base should be able to convert the number to a date of manufacture.
Another path is to use the VIN to pull the maint. history. Then use the PN on the motor to ID the year.
A final way is to dyno the motor and post the results. Owners will help ID the year by the numbers it produces.
Ranger
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Race Director
Joined: Aug 2000
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From: Central Florida
Originally Posted by JGreen
Where would I find the ESN? I looked on the passenger side head (like on my old vette), but there is no number there.
But here is a thread discussing way to differentiate an 01 and 02 Z.
Ranger
Heel & Toe
Joined: Aug 2006
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Originally Posted by rbartick
If this was done via warranty work then I would bet that they installed the 385 HP version.
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