Page 82 - Mercury Repower Guide

QUICKSILVER VALUE SERIES LONGBLOCKS

LONGBLOCK ASSEMBLY

8M0128770
Quicksilver Value Series Longblock
4 Cylinder 3.0 Liter, 181 Inline‑4
(Left‑Hand Standard Rotation) 100% New Content
Replaces 1990 & up 3.0L Marine and non‑port fuel injected Industrial LMX
engines. MerCruiser applications include: 1990‑1997 3.0L LX engines (S/N
0C856599‑0K999999), also 1998 & Up 3.0L carb & MPI MerCruiser engines
(0L010042 & up). Compatible with 1999 & newer Volvo marine engines.
Engine Features: Cast iron block, large fillet radii crankshaft, Tri‑metal bearings,
9.3:1 pistons, & 1.5:1 rocker arms. Includes provision for crankshaft pilot bearing
compatible with 1999 & newer Volvo engine couplers. Quicksilver cast iron
cylinder heads include: hardened seats, screw in studs, Black‑X valves, &
exclusive Quicksilver combustion chamber design resists knock. No provision for
port‑mounted fuel injectors. MERCRUISER
135 HP 100% New Quicksilver Marine & Industrial Engine
LONGBLOCK ASSEMBLY

8M0137122
Quicksilver Value Series Longblock
8 Cylinder 8.1 Liter, 496 V‑8
(Left‑Hand Standard Rotation) 100% New Content
Replaces 2001 & up 496 Mag & 8.1L Horizon MerCruiser, Mercury
Remanufacturing, & Quicksilver base engines. Use of this service block for other
makes is not recommended, nor supported. A complete repower with a Quicksilver
Plus Series engine is recommended for 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.
370 & 375 HP 100% New Quicksilver Marine Engine
8M0137121
Quicksilver Value Series Longblock
8 Cylinder 8.1 Liter, 496 High Output V‑8
(Left‑Hand Standard Rotation) 100% New Content
Replaces 2001 & up 496 Mag H.O. & 8.1L H.O. MerCruiser, Mercury
Remanufacturing, & Quicksilver High Output engines. Use of this service block for
other makes is not recommended, nor supported. A complete repower with a
Quicksilver Plus Series engine is recommended for 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.
420 & 425 HP 100% New Quicksilver Marine Engine

2019 Repower Product Guide 69