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7.4L (454 ci) Base Marine Engine, 385 HP (1991-Current)

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7.4L (454 ci) Base Marine Engine, 385 HP (1991-Current)

7.4L (454 ci) Base Marine Engine, 385 HP (1991-Current) 7.4L (454 ci) Base Marine Engine, 385 HP (1991-Current) 7.4L (454 ci) Base Marine Engine, 385 HP (1991-Current) 7.4L (454 ci) Base Marine Engine, 385 HP (1991-Current) 7.4L (454 ci) Base Marine Engine, 385 HP (1991-Current)

Product Details

Item Number: 7400-BaseHP-R

$5,599.00 plus shipping


7.4L (454 ci) Base Marine Engine, 385 HP

GM Marine is a leader in new and replacement marine engines. They’re dedication to innovation has led to advances in technology for the marine engine industry. The same great engineering that is put into GM automobiles will also be found in their marine engines. The 7.4L (454 ci) Base Marine Engine, 385 HP (1991-Current) can replace models from 1991-2013. 
Email sales@michiganmotorz.com or call (248) 524-9600 to place your order or for a shipping quote.

  • Remanufactured GM base marine engine (standard rotation) made for 1991-2013 marine engine applications.
  • Engine includes block, 7.4L rectangular port cylinder heads, forged steel crankshaft, domed pistons, high performance cam shaft, 8 quart marine oil pan, circulation pump, harmonic balancer, roller cam & roller lifters, corrosion resistant black urethane paint, spark plugs and all internal parts.
  • One-piece rear main seal (also known as full rear main seal).
  • No provision for mechanical fuel pump therefore, electric fuel pump is required.  
  • Flywheel not included.
  • Direct replacement for 1991 thru 2011 7.4L engines. MerCruiser, OMC, Volvo Penta, Indmar, Marine Power, etc.
  • Rated at 385 hp @ 5200 RPM / 447 LB-FT @ 4000 RPM (actual power levels may vary depending on OEM calibration and application)
  • Will work in pre-1990 7.4L (454 ci) applications (electric fuel pump and updated flywheel required).
  • One-Year parts only warranty
  • There is a $1,000.00 core charge in addition to the price shown above.
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