This is the newly rebuilt Packard almost ready to go back in the Antique Boat Museums 48 foot “runabout” Pardon Me. She simply purrs now at a 400 rpm idle. About 1650 HP and burns 50 gallons of AVGAS at 2100 rpm. Look at the camshafts. Design on this monster engine started in 1934. She weighs in about 3950 lbs including gearbox
Regards
Dave Richardson