Brand new cylinder head assembly. Part no. 11041-17B80 maximum surfacing limit as advised by Nissan is 0.2mm or approx 0.008" which can be shared between block and head. Anymore than that and you risk detonation or pinking which will melt your pistons. 

Bare head - valves, springs, rockers etc. available separately. Long time unavailable from Nissan these are the last available in the world. Boxed and wrapped in greased plastic.