Well, I've read that issue has finally been put to rest with the latest models, but yes...owners of vehicles using the LY7, or LLT from somewhere around mid 2000's through 2011, and MAYBE even the 2012 LFX have that to worry about.
But it should not be something to worry about for the future.
Come on GM...I want a 340HP V6 in a 3,400lb car, so I can mod it to 370 - 380 HP lol
. That'd be one sweet little V6....all for mid to upper $20s