Does the 28" deluxe have a Briggs and Stratton engine or LCT engines?

The 921070 has the next generation of the Ariens AX engine. These engines are an improvement over our prior design in several ways: • Better performance through a more consistent power and torque curve • Better thought out controls and switches for easier use in snow • Spark plugs are serviceable without removing the muffler guard • Crush washers on oil drain tubes • Increased fuel capacity on many models