I have a few cylinder heads.  All have been magnafluxed and pressure checked.  No valves or rockers or anything else – they are bare heads

3835913 – for a 53 and 54 235

3836850 – for a 261

3835517 – for a 1950 216 (likely off a pick up)

3835499 – 15 bold 236 head date code E 31 1 so its off a 51 – 235

3701887 – off a 53 splash 235 (has no valve cover screw holes

$200 each or cheaper yet is to trade me for silver – just sayin.  Located in Rapid City SD