Where is erg valve explorer v6 pushrod type engine?

There is no known engine called the "Erg Valve Explorer V6 pushrod type engine". There's no major manufacturer or even obscure builder with an engine using that name. It's possible:

* The name is slightly different: There might be a misspelling or a slight variation in the name. Could you double-check the source of this information?

* It's a very niche or custom-built engine: Highly specialized or one-off engines might not have widespread documentation.

* It's a fictional engine: The engine might be from a game, book, or other fictional work.

To help me find information, please provide more context: where did you encounter this engine name? Knowing the source will help determine if it's a real or fictional engine.