WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
Only grade 0 is available.
FACTORY INSTALLED PARTS GRADING
Grade
0
Connecting rod bushing inside diameter
22.000 - 22.006 (0.8661 - 0.8664)
Piston pin diameter
21.989 - 21.995 (0.8657 - 0.8659)
Piston pin hole diameter
21.993 - 21.999 (0.8659 - 0.8661)
Fig 1: Identifying Front Mark, Piston Pin Hole Grade Color And Piston Grade