This set of heads came off an engine that I rebuilt for a guy, after he was sold a "9.6-1 compression" engine that turned out to be more like 12-1 and burned some pistons after only a few hours use.
This is a date matching set of 3917215 casting GM closed chamber heads, period correct for a 68 Camaro or Corvette big block, 101 cc chambers. Might be better for a car guy, but also are ready to bolt on to an engine to bump compression if desired. Bare castings are going for $500 on Ebay,, this set is complete with rocker studs and guide plates, looks like the springs are new from his previous build. Date codes are E 2 7 and E 12 7 $500 obo