Does anyone know the exact cylinder wall thickness of:

LS1 5.7
LM7 5.3
LQ4/LQ9 6.0

If you know these number please post them up, I need the information for a project.

 

Do not know much on the thickness but gm recommends that the 5.7 block be machined a maximum of 0.004 on '97 and '98 year model blocks and 0.010 on '99 and later LS-1 blocks. The 5.3 blocks can be bored from 96mm to 99mm (3.898) LS-1 bore size to obtain 346 ci. They recommend that the 6.0 block not be machined that much to obtain more cubic inches so they recommend a stroker crank as an alternative.