Found this thread on tech. Apparently GM is running low on LS9 gaskets, so they're using the 6.0L gaskets in LS9 packaging. So double check your gaskets when you get them.

CHECK you new LS9 gaskets - LS1TECH

 

Wow, way to go GM!! lol

 

Wow thats a pretty large screw up. Thanks for spreading the word.

Wow we are on topic, can we discuss the benefits of LS9 gaskets overstock gaskets?

I put new 6.0 gaskets on my engine when i bought it and they are working great.

 

Tim, LS9 have 7 layer instead of 3 so they seal better with boost.

 

I ran across this information elsewhere today as well...no bueno.

 

that really sucks friend bought some ls9s and they were 7 layers no biggie here

 

I'm pretty sure you could get a law suit out of that somehow. False advertisement? Selling mis-labeled product?