When New Cylinder Block Is Used
WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
Check the cylinder bore grade ("1", "2" or "3") on rear side of cylinder block, and select piston of the same grade.
Courtesy of NISSAN NORTH AMERICA, INC.
NOTE:
Piston is available with piston pin as a set for the service part.