This is a brand new Authentic General Motors marine base engine. This 5.7L Marine engine is built strictly for marine use on GM production lines. The price includes the flywheel and intake manifold gaskets. The 5.7L L31 is the premier industrial workhorse, providing the power needed to get the job done without sacrificing fuel efficiency or durability. Includes: Vortec Engine with High Flow Cylinder Heads, Circulating Water Pump, 14" Flywheel, Harmonic Balancer, Oil Pan, Valve Covers, Spark Plugs, and Intake Manifold Gasket Kit. Replaces MerCruiser: 8M0088397, 866138A03, 807449R5, 807449R50, 863661R5, 8M0124238, 866138R03, 8M0124033, and Volvo Penta 3801527.
The 6.0L V-8 L96 is a heavy-duty workhorse engine. Variable Valve Timing helps the
6.0L L96 optimize performance, efficiency, and emissions. Intake flow was improved
over previous engines by straightening out and optimizing the flow path from the
intake manifold into the cylinder heads, while the exhaust ports are designed for
greater flow. The engine’s efficiency also optimizes emissions performance.