Ls1 intake or a LS6??
but from the 2nd. pic. it looks lick a ls1, because of the coolant line
that runs between the two heads and Ts. off and gose under the intake,
i dont think that the engines that the ls6 intake came on had that coolant line.
they had the newer coolant line that did not T. off and go under the intake.
The Stock 2001-2002 F-body LS6 is 12561184.
The Z06 LS6 is 12573572.
These are the numbers stamped on the manifold
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basically they changed the numbers around alot.
all i had was a camera phone so i couldnt do any better but thats right after the Throttle body.
I have a 2002 WS6, it is a LS6 intake as well.

There are a few stories of VERY early (7/00) production 2001's having the older intakes... but VERY few.


