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Quicksilver Long Block Assemblies

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Quicksilver's long block assemblies are all-new (not rebuilt, remanufactured, or reconditioned) marine engines and feature improved components, technology, and buil

Quicksilver's long block assemblies are all-new (not rebuilt, remanufactured, or reconditioned) marine engines and feature improved components, technology, and built-in durability designed to withstand years of marine duty--one of the most abusive and demanding environments for any engine.

The foundation of every Quicksilver long block engine is a new iron block cast to Quicksilver's specifications and designed expressly for marine duty. Thicker castings ensure quieter operation and better durability in saltwater when compared to a standard automotive block. They feature Black-X composite valves that contribute t

Quicksilver's long block assemblies are all-new (not rebuilt, remanufactured, or reconditioned) marine engines and feature improved components, technology, and built-in durability designed to withstand years of marine duty--one of the most abusive and demanding environments for any engine.

The foundation of every Quicksilver long block engine is a new iron block cast to Quicksilver's specifications and designed expressly for marine duty. Thicker castings ensure quieter operation and better durability in saltwater when compared to a standard automotive block. They feature Black-X composite valves that contribute to a 42 percent reduction in valve wear compared to traditional stainless steel valves with hardened seats, while smooth-flowing cylinder heads deliver added performance.

Quicksilver Value Series long blocks are cost-effective solutions when replacing an engine with a reliable fuel system and dress components that can be reused, typically when the original engine block has suffered freeze damage. Select the long block needed for your build.

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Quicksilver Long Block Assemblies 8M0187364

Mercury-Mercruiser NEW 135 HP Alpha 3.0L Longblock Assembly 4 Cylinder STD LH Rotation, serial 0C856599 – 0K999999, 0L010042 & up

Part Number: QSV-8M0187364

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Quicksilver Long Block Assemblies 8M0188294

Mercury-Mercruiser 4.3L 6Cyl STD LH Rotation, Vortec Cylinder Heads, 2000-2007 Carb/ EFI, 2007-2016 with 58x Crank . Note for MPI Serial 1A063240 & Up

Part Number: QSV-8M0188294

Not Yet Reviewed

Estimated Ship Date: Today