Rebuilding that 1.3 8v motor? We use only quality parts.
If you are unsure of what size to get, have a qualified engine re-builder tell you what size piston to get after the block has been honed.
Please select the piston size.
Don't forget the piston rings.
The proper way to redo your motor would be to do a complete motor rebuild and install all new pistons/rings/bearings/seals.