How many different part numbers are there for these intakes......

T,

 

I think there's just the one, Tom.

I had to research mine a while back to verify that it actually was an LS6 intake and I did a search on this board that broke down all the part numbers for the various stock intakes.

 

The old LS1 intake with the EGR setup is 12560688.

The Stock 2001-2002 F-body LS6 is 12561184.

The Z06 LS6 is 12573572.

 

So the 1184 is a stock LS1 intake....

and the 3572 is the more desireable one ......

T,

 

No, the 1184 is an LS6 intake from an F-Body. The Z06 intake is basically the same as an F-Body intake, the difference is the Z06 intake won't have the brass bosses for the throttle adapter since all LS powered vettes are Drive By Wire and F-Bodies weren't. "More desirable" isn't really the situation here, just externally different but no performance difference. You can take a Corvette intake and use a cable throttle with it but you will have to install the brass nutserts or have some other method of attaching the throttle cable bracket (ask me how I know this).