I would not do that. But there is some truth to the statement that really high temps make a good pizza. Outdoor wood-fired pizza ovens get HOT.

I use my gas grill, all burners on high, with a pizza stone to cook homemade pizzas. It doesn't get up to 800deg, but it does get up to 650-700, MUCH hotter than the regular oven. Produces good results for me.