Quicksilver8M0173776 Value Series Longblock8 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, MercuryRemanufacturing, & Quicksilver High Output engines. Also this service block canbe used with other makes of engines.Engine Features:Heavy Duty Iron Block with Splayed 4-bolt Main Bearing CapsPriority Main Oiling System8.6:1 Hypereutectic PistonsRoller Camshaft1.7:1Rocker ArmsForged 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
Superseded from part number8M0137121
