| | LS1 cylinder wall thickness question
I'm looking to buy a used LS1 corvette block from a buddy; but in doing some reading I found that there are two variations of the cylinder wall thickness.
Is it true that the later model LS1 blocks have thicker cylinder walls?
If so, can someone tell me the casting numbers which would reflect the thicker cylinder walls?
Just want to make sure I know what I'm buying before I commit.