5.7L (350ci) Base Marine Engine (1987-1995 Replacement)
GM Marine replacement marine engines are built with the same great technology and longevity as GM’s automobiles. The GM Marine base marine engines that Michigan Motorz provides are the same marine engines that other leading manufacturers buy directly from GM Marine. GM Marine have the best replacement marine engines in the industry. Email sales@michiganmotorz.com or call (248) 524-9600 to place your order, or for a shipping quote.
New GM base marine engine (standard rotation) made specifically for 1987-1995 marine engine applications. (The 1987-95 5.7L 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, roller cam & roller lifters, 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), 4 bolt mains, mechanical fuel pump pad. Rated at 270 hp @ 4800 RPM / 340 LB FT @ 3200 RPM with 4 barrel carb/intake. (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 additional $750 (Roller cam and roller lifters) or $349 for flat tappet cam. One-Year (parts & labor) Written 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! 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, UPS next day air, 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 UPS in continental USA. Items sent overseas are sent via USPS or UPS Worldwide Expedited, or air freight (depending on item weight). UPS cannot ship to P.O. Boxes.
Engine Shipping
For a shipping quote, please email sales@MichiganMotorz.com or call (248) 524-9600 begin_of_the_skype_highlighting (248) 524-9600 end_of_the_skype_highlighting 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
**All Marine Power complete engines are subject to a $150.00 non-refundable crate fee; and all MerCruiser complete engines are subject to a $300.00 refundable crate fee.
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
1800 Austin Drive
Troy MI, 48083
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.
Looking for some good advice, or need a quote?
In Stock parts ship today if ordered before 3:30
