Piston

GENERAL SPECIFICATIONS
Piston Pin Bushing Bore I.D. 33.235-33.248 mm (1.3085-1.3088 inch)
Crankpin Bearing Bore Diameter 68.339-68.364 mm (2.6905-2.6915 inch)
Piston to Bore Clearance Selective Fit
Skirt Diameter 104.31525-104.33305 mm (a)
Skirt Diameter 104.31525-104.33305 mm (4.10690-4.10260 inch)
Skirt Diameter 104.31525-104.33305 mm (4.10690-4.10260 inch)
Piston to Bore Clearance Selective Fit See Note C Below (b)
Piston Pin Bore Diameter
Skirt Diameter 33.2359 ± 0.0254 mm (1.3085 ± 0.001 inch)
Skirt Diameter 33.2359 ± 0.0254 mm (1.3085 ± 0.001 inch)
Skirt Diameter 33.2359 ± 0.0254 mm (1.3085 ± 0.001 inch)
Piston Height Above Crankcase
Skirt Diameter 0.010-0.031
Skirt Diameter 0.010-0.031
Skirt Diameter 0.010-0.031
Available Oversize Pistons
Skirt Diameter 104.5782 mm (c) (0.010 inch) (4.11725 inch)
Skirt Diameter 104.8385 mm (0.020 inch) (4.12725 inch)
Skirt Diameter 105.08615 mm (0.030 inch) (4.13725 inch)

a Measured at 90 degrees to the pin, at 42.77 mm (1.684 inch) below oil ring groove at room temperature.
b Clearance in cylinder bores: 0.1143-0.14986 mm (0.0045-0.0059 inch)
c Oversize service piston specifications are all ± 0.13208 mm (0.0052 inch)