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.
I had the wrong information on the standard bore size of the 340. This block has been bored to 0.030 over (@ 4.070). This block does not need any sleeves. Thanks for your comments