Piston, Engine

Piston diameter
STD
Mark 1 93.356 - 93.366 mm (3.6754 - 3.6758 inch)
Mark 2 93.367 - 93.376 mm (3.6759 - 3.6762 inch)
Mark 3 93.377 - 93.386 mm (3.6951 - 3.6766 inch)
O/S 0.50 93.856 - 93.886 mm (3.6951 - 3.6963 inch)