I bought the MLS gaskets, 12573949 and I was wondering if they are the same thickness as the regular graphite ones. Or if there are any advantages/disadvatages with using them. I should have asked first but I jumped on the sale that was on here..

I am using them on an 01 with LS6 heads

 

They are slightly thicker.

 

More info:
https://ls1tech.com/forums/generation-iii-internal-engine/339496-compressed-head-gasket-thicknesses-mls-graphite.html
https://ls1tech.com/forums/generation-iii-internal-engine/139211-compressed-head-gasket-thickness.html