4
You can find parts for your 1981 Datsun 720 King cab at most auto-parts salvage stores. Many of the parts are still available from your local Nissan dealer.
The Datsun 510, in the USA that car has been nonexistent for many moons. Good luck with that one, maybe a Datsun club could help you.
8 cylinders
Bugatti has 16 cylinders.
6 cylinders
6 cylinders.
4 cylinders
Four Cylinders
6 cylinders
6 cylinders
A Jeep can come with 4 cylinders up to 8 cylinders, it will depend on the model.
2000-2005 have 6 cylinders but the 06 ss has 8 cylinders