A Quicksilver® Value Series longblock is a cost-effective solution 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. These longblocks are all-new marine engines and feature many of the upgraded components found in our complete engines, for superior durability and smooth operation.
Quicksilver Marine Longblock Features
All-New Marine Engines
Quicksilver marine longblock engines are new from the bottom up – never rebuilt, remanufactured or reconditioned. You get a brand-new engine with 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 longblock engine is a new iron block cast to our specifications and designed expressly for marine duty. Thicker castings ensure quieter operation and better durability in saltwater when compared to a standard automotive block.
Black‑X composite valves contribute to a 42% reduction in valve wear compared to traditional stainless-steel valves with hardened seats, for longer engine life, especially in the presence of modern ethanol-blended fuels. Smooth-flowing Quicksilver cylinder heads deliver added performance in sterndrive or inboard installations.
Three-Year Limited Warranty
Quicksilver engines are infused with quality. We’re so confident in them that we back every engine with a three-year limited warranty, the strongest in the industry.