Quote:
Originally Posted by LT4Greg
Probably a bad valve spring that collapsed. Had a bad one in my 2010 2SS LS3 that was covered under warranty.
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Yeah there was a couple months of bad valve springs a while back for the 2021's. Likely what happened.
OP i would demand a brand new engine. Even if it is fixable it isn't ever the same after you open it up, at least in my eyes. Luckily my engine blew so bad they had no choice but to put a complete brand new engine it. Mine blew @ 18,500 from rod bearing six imploding.