Alaska Frontier Fabrication

Information

2020 Kodiak Marine Engines Vortec 6.0L V8 VVT (LY6)

Features may include:

• Factory-installed EFI hardware, including coil-near-plug ignition, is standard on the Vortec 6.0L GEN-IV marine engine.

• Cast iron deep-skirt cylinder block with six-bolt main bearing caps that limit crankshaft flex and stiffen the engine’s structure

• Cast aluminum structural oil pan for additional rigidity

• High-flow aluminum cylinder head design

• Variable valve timing using a hydraulic cam phaser* to retard cam timing for low end torque and advance cam timing for high rpm horsepower

• Steel camshaft, hydraulic roller lifters, and steel roller rocker arms for reduced friction and excellent durability

• Returnless fuel injection with stainless steel fuel rail

• Electronic Throttle Body fully compatible with electronic throttle control software in the MEFI-5 engine control module

• Coil-near-plug ignition system with 58X crankshaft position encoder, 4X cam sensor, and dual flat response knock sensors for precise control of ignition timing under all operating conditions

• Iridium tip long-life spark plugs with improved “self-cleaning” properties which decrease the potential for plug fouling

• External water crossover integrated into the water pump casting so that no coolant flows through the composite intake manifold

• Inconnel (high temperature) exhaust valves for long-term durability

• Revised cam phaser for improved idle quality

• Shallow sump oil pan for marine applications

• Floating pin pistons which reduce noise and increase durability

• Heavy-duty timing chain with a new leaf spring dampener to ensure quiet operation and long-term durability

• New oil pressure sensor (more robust) – no impact on mating connector/pinout/cal – black insulator

• Reduced hex height spark plugs – lower boot insertion force, no change in functionality – mid-year change

• Sil-1 nitrided intake valve added (for future E85 capability)

• Block and camshaft revisions to accept Al-Sn (Pb-free) cam bearings

• Brico 3010 intake/exhaust seat inserts (E85 capability)

• LS9 timing chain tensioner (improved durability)