Ls6 intake
Race Director
Joined: Jul 2007
Posts: 18,681
Likes: 47
From: Reno is so close to Hell you can see Sparks , State Of Confusion
St. Jude Donor '12-'13-'14
The C5 from 2001 till 2004 used the LS6 intake unless it was changed.
LS1 Intake.
LS6 Intake.
Specifically, the 97-2000 LS1 intake is rounded on the bottom, and the 2001-04 LS1/LS6 intake is flat on the bottom.
Le Mans Master
Joined: Jun 2009
Posts: 6,528
Likes: 752
From: South Dakota
The shape of the bottom is different, and another way to tell is to look at the part #'s. You can see this from the top if the manifold is still on the engine.
97-00 LS1 Manifold #12556333
01-02 LS6 Manifold #12561182
03+ LS6 Manifold #12573572
97-00 LS1 Manifold #12556333
01-02 LS6 Manifold #12561182
03+ LS6 Manifold #12573572
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