Piston: Application and ID

Matching Pistons To Cylinders (Part 1 Of 2):

Matching Pistons To Cylinders (Part 2 Of 2):

Piston To Cylinder Matching (Part 3 Of 3):

CAUTION Cylinder identification and piston identifications must agree (see arrows).

NOTE:
- The group classification has been converted from numerals to letters and reduced to three stages.
- The pistons with numerals may be installed in a crankcase with a letter grouping, but not vice versa (see table above).
- When performing repairs, all the cylinder bores should be honed to the dimensions of the existing pistons plus piston play, see "Size Honing and Silicone Lapping". Measuring, Honing and Silicon-Lapping Cylinder Bores