Ok guys...
1. Part number is 1000398.
2. There's another number stamped on the front face, 533.
3. As you can see in the photos, 8 Valves, port injected.
4. Valves are fitted. Does that mean it guides & hushers are in!? Just assume no is best I guess.
5. The cam has the letter D stamped at the very rear. I'm on a steep learning curve, but see these pages about the D cam:
https://ozvolvo.org/discussion/508/h-vs-k-camshaft
http://forums.turbobricks.com/showthread.php?t=284997
http://www.calgaryvolvoclub.com/forum/viewtopic.php?f=1&t=1914
6. The guy I bought it from said the rocker cover did not belong to this head. It was lying around the Volvo workshop, and he only screwed it on to keep dirt out... But as you can, that is the 1970s style - like on a B21 motor. The thing is, did B21 engines have that half-moon seal at the back? Because this head does.
7. It certainly looks flat. I can't see machining marks, but that could be because I don't know what to look for too. But it appears perfectly smooth to me, apart from the grit and dirty smears you can see from it being stored on a piece of chipboard.
8. Although I've tried to take care of it over the years, if you look at the last 3 photos, #1 cylinder has a nick, a couple of mm across, 1-1.5 mm deep(?) - right on the edge of the combustion area. A few other scratches here and there. Do those make the head useless?
Photos:
http://postimg.cc/image/5f23e6aht/
http://postimg.cc/image/qttgyoy3l/
http://postimg.cc/image/65utjycv5/
http://postimg.cc/image/i56br9ig1/
http://postimg.cc/image/pu7rgq8bl/
http://postimg.cc/image/flaox5uw1/
http://postimg.cc/image/dfge2nrfl/
http://postimg.cc/image/r0brfiwm9/
http://postimg.cc/image/46e7sjijl/
http://postimg.cc/image/4zveywdy9/