These heads came on a crate motor I ordered and only have 1,800 miles on them.  I’m selling them because I’m building a 347 stroker and need a bigger set.  They have larger 2.02" intake valves and 1.60" exhaust valves for more flow, a 195cc intake runner, a 63cc combustion chamber volume (I have cc’d them and verified they are 63cc), hardened valve seats, and bronze valve guides.  The heads were bought bare and assembled by the machine shop that built my motor.  The heads are in great shape other than the valve stems need resurfaced by a machine shop.  The roller rockers weren’t lined up perfectly when the motor was built and caused the roller tips to groove some of the valve stem tips.  Asking $600, new the heads retail assembled for $1,196 a pair.  Call or text C.J. with any questions 620-635-5893.  I could probably arrange delivery to the Hays area if interested. Thanks!