Cylinder wall thickness?
01-20-2009, 11:28 AM
#1
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Cylinder wall thickness? 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.
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.
01-20-2009, 06:50 PM
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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.
