Mercury-Mercruiser 8M0187377 Quicksilver 8.1L Longblock

8M0173775 Quicksilver Value Series Longblock 
8 Cylinder 8.1 Liter, 496 V‑8 (Left‑Hand Standard Rotation) 100% New Content
370 & 375 HP 100% 

Replaces 2001 & up 496 Mag & 8.1L Horizon MerCruiser, Mercury Remanufacturing, & Quicksilver base engines. Also this service block can be used with other makes.

Engine Features: Heavy Duty Iron Block with Splayed 4‑bolt Main Bearing Caps, Priority Main Oiling System, 8.6:1 Hypereutectic Pistons, Roller Camshaft, 1.7:1 Rocker Arms, Forged Steel Crankshaft, and billet oil adapter. Quicksilver Iron Cylinder Heads feature Black‑X Valve Technology, hardened seats, and shot peened marine valve springs.

3 Years of Limited factory warranty in the U.S.A.!

Like the popular Quicksilver Crate Engines, the 100% new Quicksilver Value Series longblocks are not converted automobile units nor remanufactured.

Parts that will need to be transferred or purchased separately
• Balancer
• Flywheel
• Spark Plugs
• Distributor
• Water pump
• Manifold gasket set
• Quicksilver Synthetic Blend 25W‑40 4‑Stroke Oil

Quicksilver Value Series longblocks are built from scratch for Marine applications, and some are compatible for Industrial duty! Quicksilver tooled and assembles these 100% new engines to keep legacy products fully supported with superior products that are now built better than ever!