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New 7.4L Right Hand Rotation GM Marine Long Block
Model: 881741 This is a brand NEW  Right Hand Rotation General Motors marine base engine. 

Our GM Marine long blocks are ideal for replacing an engine when the component parts are still good.  Why replace it if it is not broken?  However, we do recommend replacing warn out components.  All engines, unless clearly stated, are authentic General Motors Marine engines.  Our authentic GM marine engines are built on GM production lines for marine applications.  Don't be mislead by others who can't claim GM authenticity unless you are satisfied with an imitation.

This product ships via Freight Shipping

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Includes Specifications Related Parts Return Policy  
  • Right Hand Rotation Block with all internal components
  • Harmonic balancer
  • Timing chain cover
  • Oil pan
  • Valve cover
  • One piece rear main seal
Displacement 454 C.I.D. / 7.4L
Cylinders 90 Degree V8 cylinder
Compression Ratio 8.6:1
Valve config. Overhead valves (2 valves per cylinder)
Valve lifters Hydraulic roller
Oil pan capacity 8 quarts (with filter)
Warranty 1 year limited (Commercial 90 day)

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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 email info@marineenginedepot.com for a RMA #

Returns must be shipped to: Marine Engine Depot17506 MPH Industrial ParkPonchatoula, LA 70454

If parts arrive damaged in shipment, it is the customers responsibility to notify the carrier immediately and reject the damaged package. Contact Marine Engine Depot for potential freight damage. A claim will be filed and we will send out the identical part.