if you're looking for valve parts...
 

Just a current availability update. I needed one exhaust valve, and 6 exhuast valve guides for my N47 head. Motorsport had the valve, but unfortunately only had 3 guides in stock and didn't show any more showing up in the next couple of weeks. Courtesy Nissan was able to get them from a Nissan warehouse, though. With expedited shipping, total was $70.
Anyway, if you're going to need some stock valvetrain parts for a later S30, plan on a little more time/effort to get them, at least at the moment.
Now if I can just get my cam shipped to Web today for regrinding...
Dave

Okay, turns out Courtesy Nissan couldn't get the guides from the Nissan warehouse groups, either. But, VB lists regular and "premium" valve guides. I went with the premiums, and an exhaust valve. With shipping, $50 total. Should be here Monday.
Dave