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5.0L (305ci) Base Marine Engine (1987-1995 Replacement)

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5.0L (305ci) Base Marine Engine (1987-1995 Replacement) 5.0L (305ci) Base Marine Engine (1987-1995 Replacement) 5.0L (305ci) Base Marine Engine (1987-1995 Replacement) 5.0L (305ci) Base Marine Engine (1987-1995 Replacement) 5.0L (305ci) Base Marine Engine (1987-1995 Replacement) 5.0L (305ci) Base Marine Engine (1987-1995 Replacement)
Product Details
View GM Marine

Item Number: 5000-BasePreV

$3,199.00

$2,859.00 plus shipping

Product Options

Temporarily out-of-stock... Please call for ETA before ordering!

  • Brand New GM base marine engine (standard rotation) made specifically for 1987-1995 marine engine applications. (The 1987-95 5.0L marine engine can easily be identified by 4 bolts that go in the center of the valve covers. 8 of the 12 intake manifold bolts are installed at a 90º angle on the cylinder heads; the remaining 4 center intake manifold bolts are installed at a 72º angle).
  • Engine includes: engine block, cylinder heads, center-bolt valve covers, timing cover, 5-quart marine oil pan, circulation pump, harmonic balancer, flat tappet cam, spark plugs, corrosion resistant black urethane paint, and all internal parts.
  • Direct replacement for 1987 thru 1995 305 ci (5.0L), 350 ci (5.7L) MerCruiser, Volvo Penta, OMC, Indmar, etc.
  • One-piece rear main seal (also known as full rear main seal), 2 bolt mains, mechanical fuel pump pad.
  • Rated at 230 hp (actual power levels may vary depending on OEM calibration and application)
  • 8 of the 12 intake manifold bolts are installed at a 90º angle to the block. (4 center bolts are installed at a 72º angle to the block).  
  • Opposite rotation available for an additional $349 for flat tappet cam.
  • One year limited warranty

    Optional gasket kit (intake, exhaust, distributor & thermostat) available for an additional $50.00 - add this option in the "Product Options" box above.

  • We ship parts and engines worldwide!* MERCURY PARTS CAN ONLY BE SOLD AND SHIPPED TO ADDRESSES WITHIN THE UNITED STATES.

    Parts orders placed before 3:30pm EST will normally be shipped same day (if the item is in stock). If you need your parts asap, Fedex Overnight, second day air, etc., are also available (Deadline is 3:30pm Eastern time). Engine orders will be processed and shipped within 24-48 hours after payment-in-full is received. For special engine orders, shipping time is based on current stock and build time.

    Items under 75 pounds are sent via Fedex in Continental USA. Items sent overseas are sent via fedex international, or air freight (depending on item weight). Fedex cannot ship to P.O. Boxes.

    All Packages over $175.00 will require Indirect Signature: FedEx obtains a signature from someone at the delivery address; from a neighbor, building manager or someone at a neighboring address; or the recipient can also leave a FedEx Door Tag authorizing release of the package without anyone present, or you can sign up for FedEx Delivery Manager.

    Canadian Shipments

    Rates for Standard service to and from Canada do not include charges for customs clearance. For shipments from Mexico, routine customs clearance is included. Customs brokerage charges, duties and taxes will be billed to the importer unless otherwise indicated by the shipper. Some shipments to and from certain locations may require additional time in transit.

    Engine Shipping

    For a shipping quote, please email sales@michiganmotorz.com or call (248) 524-9600 with your shipping address and contact information. We use different freight carriers to find you the lowest price AND safest delivery. Some of the freight carriers we use are: R&L Freight, Con-Way Freight, Estes Express, Pilot Air, USF Holland, Forward Air, Old Dominion, Overnight Express, Watkins, and Dayton Freight. Engines can be picked up at a local shipping terminal or dropped off at your location*. Engines are packed in specially designed crates made for that engine**.

    All oil & lubricating fluids are drained before they are sent out (this is required by our freight carriers). All engines & parts are packed by our shipping department. Engines are then inspected by our shipping manager before they are loaded onto a freight carrier.

    *Certain restrictions apply

    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. Refunds will not be issued for damaged merchandise. All returns must be made within 15 days of delivery to you. No refunds for electronic parts if box is opened. All returns must have a RMA # and invoice #. 15% restocking fee on the return of any complete engine. Please call or email for a RMA #.

    Returns must be shipped to:
    Michigan Motorz, LLC
    32333 Mally Drive
    Madison Heights, MI 48071
    (248) 524-9600

    If parts arrive damaged in shipment, it is the customers responsibility to notify the carrier immediately and reject the damaged package. Contact Michigan Motorz of the potential damage. A claim will be filed and we will send out the identical part. If parts are damaged in shipment and the customer does not notice damage, please call Michigan Motorz, LLC.

    *= No Sales Tax OUTSIDE the state of Michigan. Orders placed over the phone or though our website will be charged 6% for sales tax within the state of Michigan.

    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. Refunds will not be issued for damaged merchandise. All returns must be made within 15 days of delivery to you. No refunds for electronic parts if box is opened. All returns must have a RMA # and invoice #. 15% restocking fee on any complete engine. Please call or email for a RMA #.

    Returns must be shipped to:
    Michigan Motorz
    32333 Mally Drive
    Madison Heights, MI 48071

    If parts arrive damaged in shipment, it is the customers responsibility to notify the carrier immediately and reject the damaged package. Contact Michigan Motorz of the potential damage. A claim will be filed and we will send out the identical part. If parts are damaged in shipment and the customer does not notice damage, please call Michigan Motorz LLC.

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