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    Manufacturer: General Motors

    New 5.7L GM Marine Long Block Engine

    $2,867.00
    This is a brand new General Motors marine base engine. This 5.7L Marine engine is built strictly for marine use on GM production lines. The 5.7L L31 is the premier industrial workhorse, providing the power needed to get the job done without sacrificing fuel efficiency or durability.
    SKU: 881571
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    Our official GM Marine long blocks are ideal for replacing your current engine when the existing components are still good.

    These engines are built on GM production lines strictly for marine applications. Don't be misled by others who can't claim GM authenticity.

    This Genuine GM engine comes with spark plugs that are used for fuel injected applications. You must change the plugs to a GM 05614210 (Marine Engine Depot # 479104) if used for a carbureted application. 

     Includes:

    • Vortec Engine with High Flow Cylinder Heads
    • Circulating Water Pump
    • 14" Flywheel
    • Harmonic Balancer
    • Valve Covers
    • Spark Plugs
    • Intake Manifold Gasket Kit (289579)
    Products specifications
    Displacement 350 C.I.D. (5736 CC) / 5.7L
    Cylinder Head Cast Iron
    Cylinders 90 Degree 8-Cylinder
    Engine Orientation Longitudinal
    Compression Ratio 9.4:1
    Valve Configuration Overhead Valves (2 valves per cylinder)
    Valve Lifters Hydraulic Roller
    Firing Order 1 – 8 – 4 – 3 – 6 – 5 – 7 – 2
    Bore x Stroke 4.00" x 3.48" (101.60 x 88.39 mm)
    Ignition Not Included
    Horsepower 325 hp (161 kW) @ 4000 rpm / 196 hp (146 kW) @ 4000 rpm (CNG)
    Flywheel Diameter 14" (Ring Gear Towards Engine)
    Torque 308 lb-ft (418 Nm) @ 1400 rpm (LP) / 283 lb-ft (384 Nm) @ 1600 rpm (CNG)
    Oil Pan Capacity 5.5 Quarts (with filter)
    Emission Controls Positive Crankcase Ventilation
    Block Cast Iron GM232-M
    Main Bearing Caps Cast iron GM232-M
    Crankshaft Nodular Iron
    Camshaft 5150 Steel Billet
    Connecting Rods Forged - SAE 1141
    Warranty 1 Year Limited (Commercial 90 day)

    Standard Shipments

    We ship orders under 100lbs by UPS or USPS. Expedited shipping services (Next Day Air, Priority Mail, etc.) can be selected during the checkout process. Shipping estimates can be obtained from the shopping cart page before checkout. All expedited orders must be placed before 11:00 A.M. CST to gurantee same day shipping. International orders under 75lbs will ship by UPS. 

     

    Engine/Freight Shipments

    Standard engine shipment quotes are available from the check out page. Customers may contact MED to set up special shipping instructions if necessary. Make sure to check lift gate service or residential delivery if needed. MED will add appropriate charges if services are needed and not billed on original invoice. Engine orders will be processed and shipped within 48 hours if stock is available. Although Marine Engine Depot tries to keep stock of all engines, standard lead time on engines when stock is not available is three weeks.

    All engines are covered by the Marine Power USA warranty policy. Click here for more information on registering your engine for warranty. See below for details.

     Base/ParPac Engine Warranty: 

    The warranty period for a Marine Base or ParPac engine is one (1) year parts and bench labor (Maximum Labor $500.00) from the date of sale. Receipt of a properly completed Warranty Registration / Sea Trial form must be received by Marine Power for any warranty claim to be honored.

     Complete Engine Warranty: 

    The warranty period for a Complete Marine engine is two (2) years from the date of sale. Receipt of a properly completed Warranty Registration / Sea Trial form must be received by Marine Power for any warranty claim to be honored.

     Parts Warranty: 

    The warranty period is one year from your date of purchase. During the warranty period, we will replace, at our option, any new part that fails due to a defect in materials or workmanship under normal use and service after proper installation. Refunds will only be considered if the defective part is returned along with your original sales receipt within 30 days from the original date of purchase.

     Returns:

    For items received as described, a refund of the final invoice price (minus Shipping and Handling charges and a 15% Restocking Fee) will be issued. Buyer is responsible for return shipping costs and for sufficiently packing and insuring returned items unless otherwise agreed upon. All returns must be made within 30 days of delivery. No refunds for electronic parts if box is opened. All returns must have an RMA number and Invoice number. There is a 15% restocking fee on the return of any complete engine. All packages must have the RMA number clearly marked on the outside of the box. Any return made without prior authorization or passed the 30-day return period will not be credited and returned to the customer.

    Please email sean@marinepowerusa.com or call (985)-386-2081 to receive an RMA number.

     

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      WARNING: This product can expose you to chemicals including Gasoline engine exhaust (condensates/extracts), 

    which are known to the State of California to cause cancer.  For more information go to www.P65Warnings.ca.gov.

    Our official GM Marine long blocks are ideal for replacing your current engine when the existing components are still good.

    These engines are built on GM production lines strictly for marine applications. Don't be misled by others who can't claim GM authenticity.

    This Genuine GM engine comes with spark plugs that are used for fuel injected applications. You must change the plugs to a GM 05614210 (Marine Engine Depot # 479104) if used for a carbureted application. 

     Includes:

    • Vortec Engine with High Flow Cylinder Heads
    • Circulating Water Pump
    • 14" Flywheel
    • Harmonic Balancer
    • Valve Covers
    • Spark Plugs
    • Intake Manifold Gasket Kit (289579)
    Products specifications
    Displacement 350 C.I.D. (5736 CC) / 5.7L
    Cylinder Head Cast Iron
    Cylinders 90 Degree 8-Cylinder
    Engine Orientation Longitudinal
    Compression Ratio 9.4:1
    Valve Configuration Overhead Valves (2 valves per cylinder)
    Valve Lifters Hydraulic Roller
    Firing Order 1 – 8 – 4 – 3 – 6 – 5 – 7 – 2
    Bore x Stroke 4.00" x 3.48" (101.60 x 88.39 mm)
    Ignition Not Included
    Horsepower 325 hp (161 kW) @ 4000 rpm / 196 hp (146 kW) @ 4000 rpm (CNG)
    Flywheel Diameter 14" (Ring Gear Towards Engine)
    Torque 308 lb-ft (418 Nm) @ 1400 rpm (LP) / 283 lb-ft (384 Nm) @ 1600 rpm (CNG)
    Oil Pan Capacity 5.5 Quarts (with filter)
    Emission Controls Positive Crankcase Ventilation
    Block Cast Iron GM232-M
    Main Bearing Caps Cast iron GM232-M
    Crankshaft Nodular Iron
    Camshaft 5150 Steel Billet
    Connecting Rods Forged - SAE 1141
    Warranty 1 Year Limited (Commercial 90 day)
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