Hey there!
Thanks so much for watching our LS series on YouTube. So, for bore size I would ask the machine shop what the block is going to clean up at, you are hoping for.030 over bore. Also have them check the block with a magnaflux process to ensure the block is usable. As for the connecting rods and piston weights go, you just want each piston and rod combo to be identical with weight to every other pair.
You will also have to get pistons and rings to match how ever much you need to bore your engine over to.
Thanks for using 2CarPros!
If you have any other questions, please let me know and I will help you.
Best regards,
Ryan
Wednesday, October 13th, 2021 AT 5:03 PM