This is the original head from the first engine I had, which blew a piston after an ill advised 150 mile race up 1-5 against a Cherokee, when I was overly excited about my new 4-barrel, intake and headers on an otherwise stock motor . That was a lot of fun, actually, despite how it ended. The mechanic I went to told me they'd send it off to this unnamed outfit in Texas that supposedly specializes in rebuilding slant sixes, but what actually happened is they jusy ordered an already rebuilt 225 with 'a performance cam' and otherwise pretty much stock. Then, during the break-in period, I blew up a couple rocker arms and they also found some flaw in the Texas head so they milled my old head .100 and reused it. All of this went down before I found this site and SlantSix.org, and knew even less than I do now.
