340 block

SLEEVES?? Do you mean there are problems inside the cylinders, or you believe the bore to be already so big that sleeves will be needed?

My interpretation of his add is as follows. He wants 600 bucks for a block that he says needs sleeves. I take that to mean EIGHT SLEEVES. A 600 dollar block that needs EIGHT SLEEVES. So that's a 600 dollar block that needs 1500 bucks worth of repair.