This is the Nagel Engine Company, founded in 1998 by Will Nagel, located in Jacksonville, FL.

-The first known engine of this brand is a 12-cylinder that gives 450 HP at 4,400 rpm, with reduction gear therefore, at a 0.5 ratio. It is the "444 Twelve" model.

“Nagel 444 Twelve”

-It has six cylinders per side, and it made its first run in 2003.

-The ignition does not use magnetos, although it does use two alternators to produce current and each cylinder has its own high coil.

“Nagel 444 Twelve”