|Forgot to mention the bearing debris had totally scored the cylinder walls. but luckily only on 2 cylinders both on the same bank and my pistons stick out from the top of the block 0.3MM, so maybe a bit of debris was pushed under the head gasket, or just the cometic didn't seal so well.
compression was down to 120ish with the cylinder wall scratches before it totally blew.
I have a cometic still on the other cylinder bank and its holding well with good compression.
A ball honing and a tomei gasket fixed that, but i'm left with an unbalanced engine now and had to do all the work myself for it to work properly. Planning to get it balanced somewhere this time before reassembling with my new turbos.