i have a 99 ss with the stock ls1 intake. my buddy bought a intake awhile back that was on a corvette dont know what model or nothing. i was hoping someone could tell me where to look on finding out if it is the ls6 intake or not. thanks

 

if the bottom is flat its an ls6

it is has a somewhat curved shape to it's bottom (curved up) than its the ls1

 

the easiest is by part number. it is located on drvs side b/t cyl 1 and 3.

 

alright thanks alot ill go take the part number to the dealer tommorow n find out

 

Part#
01-02: 12561182 = LS6
02+: 12573572 = C5 LS6

The search function works wonders!

 

egr=ls1 intake,unless slp unit
no egr=ls6 intake

 

Not true, I've pulled LS1 intakes off of C5's that didnt have EGR. im not sure if they are all like that or just certain years but that isn't a fool proof method.

I would say if you have the intake loose(not installed on motor) then the easist was to identify it would be spending <5 seconds turning it upside down. taking the numbers to the dealer is a hassel and uncalled for.

if the bottom floor area in the middle between the ports is flat(it will have a raised checker design to it for strength) its and LS6 intake.

if the bottem floor has a wave length wise to it then you have an LS1 intake.


I've decided to make it even easier, here is a comparison pic. the one on the right is the LS6. sorry about the size.

 

go to know,there still is no factory ls6 intake with egr,just slp one correct?

 

as far as I know, the aftermarket SLP LS6 intake is the only one with EGR.

some people have ghetto rigged EGR on their LS6 but those are usually pretty easy to point out.

 

thanks for the pic comparison looks like i have another ls1 intake