Armilite
Well-Known Member
DuroMax has a New 500cc, 20hp@3600rpm Single Cylinder in their XP13000EH 13,000-Watt Generator, but isn't offering it as a Standalone Engine. A 420 upgraded can make 36hp@5250rpm, and a 460 can make a 37hp@5000rpm with aftermarket HD Racing Parts. A 500cc should put out around 40-42hp@5000rpm once upgraded! If you're interested in this Engine I would write them and express your desire for a Standalone Engine. For Air Boat, Hover Craft, Snow Glider, Snowmobile, Off-Road Kart, Ultralight & Kitplane, Saw Mill, etc!
https://www.duromaxpower.com/produc...00-watt-portable-hybrid-gas-propane-generator
https://www.duromaxpower.com/produc...00-watt-portable-hybrid-gas-propane-generator