WHEN NEW CYLINDER BLOCK IS USED Check the cylinder bore grade (“1”, “2” or “3”) on rear side of cylinder block, and select piston of the same grade.

A | : Cylinder bore grade No. 1
B | : Cylinder bore grade No. 2
C | : Cylinder bore grade No. 3
D | : Cylinder bore grade No. 4
E | : Cylinder bore grade No. 5
F | : Cylinder bore grade No. 6
G | : Bearing housing grade No. 1
H | : Bearing housing grade No. 2
I | : Bearing housing grade No. 3
J | : Bearing housing grade No. 4
| : Engine front

NOTE：

- Oversize pistons are not service parts.
- Piston is available with piston pin as a set for the service part. (Only “0” grade piston pin is available.)

WHEN NEW CYLINDER BLOCK IS REUSED

1.Measure the cylinder bore inner diameter. Refer to Inspection (GT-R certified NISSAN dealer).

2.Determine the bore grade by comparing the measurement with the values under the cylinder bore inner diameter of the “PISTON SELECTION TABLE”.

A | : Identification code
B | : Front mark
C | : Piston pin grade number
D | : Piston grade number
| : Engine front

3.Select piston of the same grade.

PISTON SELECTION TABLE

Unit: mm (in)
Grade | 1 | 2 | 3
Cylinder bore inner diameter | 95.500 - 95.510 (3.7598 - 3.7602) | 95.510 - 95.520 (3.7602 - 3.7606) | 95.520 - 95.530 (3.7606 - 3.7610)
Piston skirt diameter | 95.480 - 95.490 (3.7590 - 3.7594) | 95.490 - 95.500 (3.7594 - 3.7598) | 95.500 - 95.510 (3.7598 - 3.7602)

NOTE：

- Oversize pistons are not service parts.
- Piston is available together with piston pin as assembly.
- Piston pin (piston pin hole) grade is provided only for the parts installed at the plant. For service parts, no piston pin grades can be selected. (Only “0” grade is available.)