This ia a very nice pair of Porsche 914 2L heads, completely rebuilt by FAT Performance of southern California. As you can see, they have Stainless valves. The heads are nearly perfect except for a couple of small cracks in one of the fins on one head which could be repaired if you wish (see pictures). The other head has no defects. I had big plans to upgrade the heads on my bus, but my daily driver died so these are now being sold for car payments. These heads are VERY hard to find now and have been lovingly rebuilt and flow tested by a reputable company. $1000 (pair only)