i have a 02 ls1 block sitting in my garage, i took it out to drop the 408 in. it is the ls6 block according to casting numbers. it has around 80k miles on it, the pistons have some little nicks on them from some PTV issues. no chips or cracks, didnt even bent valves. i went on to put another 3-5k miles afterwards.
i do have a set of bare 241 heads to go with this also. asking 750$ will post pics of engine and pistons and heads.

 

awaiting pics

 

why do you have to be so far

 

ill take it