What is the easiest way to determine if an intake manifold is truly an LS6? I would imagine some sort of casting # and what not but anything else? Obviously no E.G.R right?

 

take a look at the frontend underside of the intake (just under the throttle body) should be flat from oneside to the other. LS1 will have a dip.


http://www.ls1howto.com/howto/geniii...//IMAGE009.jpg

 

Awesome man, thanks.


Any other dead giveaways?

 

and yes casting #. But some you can get with E.G.R. so that means nothing as far as differentiating them. Easiest way by far is to get the casting #. If you know it i can tell you if its a ls6 intake

 

- The Ls6 intake has many different part numbers buts its the same intake

- The only way to tell 100% if you are buying an ls6 intake, especially used is to ask for pics of the bottom. The vette LS1 intake does not have an EGR provision so its easy to pass that off as an LS6 if you are none the wiser. Check the website below.

http://www.thedetailzone.com/LS6%20Intake.htm

 

Yep, check under the intake, should be flat

 

Just found this, would this be a common enough question to sticky? There are pretty good answers here.

-Gary

 

I think it might be sticky worthy. Considering how many of Fbod guys do this swap(90% of pre 01 owners I would say)

 

Its already in the sticky titled: "Mod Guide: Induction and Exhuast (PLEASE READ BEFORE POSTING)"