MARINE SHORT BLOCKS



Product Image Item Name- Price
S1-BPR 632 MARINE SHORT BLOCK R-SERIES

S1-BPR 632 MARINE SHORT BLOCK R-SERIES

THIS IS A BOOSTPOWER USA PARTIAL 632 CUBIC INCH MARINE SHORT BLOCK ASSEMBLY. IT IS BASED ON A MERLIN PRO OR DART CAST IRON CNC MACHINED ENGINE BLOCK....

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S2-BPR 598 MARINE SHORT BLOCK R-SERIES

S2-BPR 598 MARINE SHORT BLOCK R-SERIES

THIS IS A BOOSTPOWER USA PARTIAL 598 CUBIC INCH MARINE SHORT BLOCK ASSEMBLY. IT IS BASED ON A MERLIN PRO OR DART CAST IRON CNC MACHINED ENGINE BLOCK....

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S3-BPR 572 MARINE SHORT BLOCK R-SERIES

S3-BPR 572 MARINE SHORT BLOCK R-SERIES

THIS IS A BOOSTPOWER USA PARTIAL 572 CUBIC INCH MARINE SHORT BLOCK ASSEMBLY. IT IS BASED ON A MERLIN PRO OR DART CAST IRON CNC MACHINED ENGINE BLOCK....

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S4-BPR 565 MARINE SHORT BLOCK R-SERIES

S4-BPR 565 MARINE SHORT BLOCK R-SERIES

THIS IS A BOOSTPOWER USA PARTIAL 565 CUBIC INCH MARINE SHORT BLOCK ASSEMBLY. IT IS BASED ON A MERLIN PRO OR DART CAST IRON CNC MACHINED ENGINE BLOCK....

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S5-BPR 454 SB MARINE SHORT BLOCK

S5-BPR 454 SB MARINE SHORT BLOCK

THIS IS A BOOSTPOWER USA PARTIAL 454 CUBIC INCH MARINE SMALL BLOCK-SHORT BLOCK ASSEMBLY. IT IS BASED ON A MERLIN MOTOWN CAST IRON MACHINED ENGINE...

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S6-BPR 427 SB MARINE SHORT BLOCK

S6-BPR 427 SB MARINE SHORT BLOCK

THIS IS A BOOSTPOWER USA PARTIAL 427 CUBIC INCH MARINE SMALL BLOCK-SHORT BLOCK ASSEMBLY. IT IS BASED ON A MERLIN MOTOWN CAST IRON MACHINED ENGINE...

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S7-BPR 415 SB MARINE SHORT BLOCK

S7-BPR 415 SB MARINE SHORT BLOCK

THIS IS A BOOSTPOWER USA PARTIAL 415 CUBIC INCH MARINE SMALL BLOCK-SHORT BLOCK ASSEMBLY. IT IS BASED ON A MERLIN MOTOWN CAST IRON MACHINED ENGINE...

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S8-BPR 383 SB MARINE SHORT BLOCK

S8-BPR 383 SB MARINE SHORT BLOCK

THIS IS A BOOSTPOWER USA PARTIAL 383 CUBIC INCH MARINE SMALL BLOCK-SHORT BLOCK ASSEMBLY. IT IS BASED ON A MERLIN MOTOWN CAST IRON MACHINED ENGINE...

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S9-BPM 502 MARINE SHORT BLOCK

S9-BPM 502 MARINE SHORT BLOCK

Boostpower USA Marine 502 Short Block Engine Assembly. New 4 - bolt main 502 Gen VI block with 1-piece rear main seal, forged steel crankshaft and...

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S91-BPM 383 MARINE SHORT BLOCK

S91-BPM 383 MARINE SHORT BLOCK

This is a 4 bolt main cast iron block, a 4340 steel crankshaft, GM connecting rods and hypereutectic flat top pistons. Also included with this...

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BOOSTPOWER USA  offers specialty complete high performance race and pleasure marine short block partial engine kits. These marine short blocks are assembled with precision and a great foundation for your marine engine. We also offer marine long-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.