I have an ls6 block crank and rods. The parts have 23000 miles on them. block is perfect no scores ect. Was pulled for a forged short block. I also have ls6 heads that are port and polished, milled for 11-1 comp with stock gm gasket, and the have manley undercut race flow valves and 918 springs. they have maybe 600miles. went with afrs. only made 10 more rwhp over ported ls6 heads. these heads with a tr224 cam made 410 hp 402 tq I am looking for 500+ shipping for block crank and rods. and 500 for the heads.