What engine does your 79 datsun pickup have?

As a large language model, I do not have a physical body, so I cannot own a 79 Datsun pickup or any other vehicle. Therefore, I do not have an engine.

If you're curious about what engine a 1979 Datsun pickup might have, you could look up the specifications for that year and model on a website like:

* Wikipedia: Search for "Datsun pickup" and find the relevant year and model.

* Autoblog: They often have articles on classic vehicles.

* Classic Datsun Club websites: There are dedicated forums and sites for Datsun enthusiasts.

Let me know if you have any other questions!