Piston, Engine
| Piston Diameter Standard Note: Measured at 90 degree angle to piston pin | Bohn Pistons | Cylinders 1-6 | 3.9724-3.9744 |
| Cylinders 7&8 | 3.9719-3.9739 | ||
| Zollner Pistons | Cylinders 1-6 | 3.9175-3.9735 | |
| Cylinders 7&8 | 3.9709-3.9730 | ||
| Piston Clearance | Bohn Pistons | Cylinders 1-6 | 0.0035-0.0045 |
| Cylinders 7&8 | 0.0040-0.0050 | ||
| Zollner Pistons | Cylinders 1-6 | 0.0044-0.0054 | |
| Cylinders 7&8 | 0.0049-0.0059 |