I'm sure they can. Just ring an instrument place and ask them.
Here's one -
Attspeed Auto Instruments -Speedometers - St Marys, NSW Unit 1, 35- 37 Glossop St, St Marys NSW 2760, Australia - (02) 9833 0055
I know VN-VS Commodore ones can be............
I rang inquiring about a car once and ask how many kms has the car traveled?
The owner replied with........ how many would you like it to have done?
Bob.