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BOOSTPOWER USA offers specialty complete high performance race and pleasure marine long block partial engine kits. These marine long blocks are assembled with precision and a great foundation for your marine engine. We also offer marine short-blocks, balanced rotating assemblies, custom cylinder heads, and all the other hardcore marine engine internal parts necessary to complete a reliable performance marine engine project. BOOSTPOWER’s years of dedication to technology along with our continuous building, dyno testing, competing and tuning these mighty power plants assures you of a winning reliable combination right from the start.