Cylinder bore diameter by piston size (Mazdaspeed)

Cylinder bore mm {in} Size Diameter Standard 83.000—83.019 {3.2678—3.2684} 0.25 {0.01} oversize 83.250—83.269 {3.2776—3.2783} 0.50 {0.02} oversize 83.500—83.519 {3.2874—3.2881} Wear limit 0.006 in (0.15 mm)Cylinder bore mm {in} Size Diameter Standard 83.000—83.019 {3.2678—3.2684} 0.25 {0.01} oversize 83.250—83.269 {3.2776—3.2783} 0.50 {0.02} oversize 83.500—83.519 {3.2874—3.2881} Wear limit 0.15 mm {0.006 in}

Measure X and Y at 35 mm below the top surface. Base reboring on the actual oversize piston; all cylinders must have the same diameter. The 0.15 mm wear limit is additional wear, not an absolute bore diameter.