1984 sleekcraft Open Bow, Volvo Penta motor with 240 HP Stereo Bimini Top 1984 SLEEKCRAFT 21' MINI DAY OPEN BOW BOAT It's powered by a Volvo Penta motor with 240 HP. It comes with a Bimini top. This boat has been serviced regularly. It rides on a tandem axle Performance trailer with custom rims and new tires. It is all ready for some fun on the water.