Copperhead 23 HP Vanguard block - 627 cc, 23 HP, v-twin - The flagship mud motor in our stable. Weighs 138 lbs. With its light weight, this engine will fit a wide variety of boats. From 12' to 17'. On a 15' hull, speed ranges from 25 to 28 MPH with 2 men and gear. Electric start, recoil back up for starting, remote fuel, 20 amp charging system, heavy duty starter solenoid, tach/hour meter, 5 feet of battery cable standard.