Mercury-Mercruiser 8M0187372 Quicksilver Longblock 383 MPI V8

8M0187372 GM 6.3 Liter Gen+ 383 V8
Left-Hand / Standard Rotation
Replaces 2008 and later 383 MPI Repower engines.

3 Year limited factory warranty. No core or container deposit.

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

Black-X Valve Technology
21N Intake valve parent material
24N Exhaust valve parent material
Plasma nitride prevents valve sticking & increases toughness
Chrome-Cobalt alloy seats resist corrosion from alcohol fuels
Valve life improved 42%
Hardened valve seat installed in the cylinder heads
Hardened Intake & Exhaust seat inserts
Premium alloy seat material
Heavy duty head and block castings
Resist corrosion and cracking
Higher loading capacity
Ability to use solid engine mounts
Premium components
100% brass core plugs
High volume oil pump
Marine valve springs resist fatigue
Super polished crankshafts using superior material and design features
100% Advanced SIM Testing
Water and oil passages pressure tested 100%
Phased rotational testing with hot oil validates all oil passages, bearings, and assembly
Advanced compression testing verifies cylinder sealing and valve lash integrity
Oil flush at completion of test removes break-in debris
Shipped without oil to prevent spillage while in transit