The Stage II is a converted engine based on the Chrysler 473 cu in (7,750cc) V8 automobile engine and inspired by engine concepts from Curtiss, Packard or RR.

“Stage II engine”

-The modification was carried out by Joe Schubeck in California.

-The Stage II is capable of delivering up to 1,500 HP and was planned to participate in pylon air racing and to break records. It is known that the nominal power is 800 HP, without special additions.