Find a Dealer Today. Engine Details. High-displacement, four-cylinder, single-overhead-cam design delivers optimum power and a smooth ride. Great for aluminum tiller, aluminum console, inflatable rigid hull (RIB) and soft hull, watersports, and fish & ski boats. Specifications - 40 EFI 4-Cylinder. HP / kW. 40 / 30. 30 sold DuroMax XP16HPE 420cc 1" Recoil/Electric Start Horizontal Gas Powered Engine (30) $419.00 $8.95 shipping 1,286 sold Tecumseh LH358XA 159493Y 10HP Tapered Shaft Engine $149.99 $20.00 shipping or Best Offer 110 sold Electric Starter Flywheel Ignition Charging For Predator 212cc 6.5HP Gas Engine $99.99 $19.99 shipping or Best Offer.