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8.1L Vortec Marine Engine, 425 hp, HO (2001-Current)

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8.1L Vortec Marine Engine, 425 hp, HO (2001-Current)

Product Details

Item Number: 8100-R425


$5,399.00 plus shipping

2001-current Vortec 8.1L marine engine (one-piece rear main seal, roller cam and roller lifters). This motor has been professionally remanufactured to meet or exceed GM OEM marine engine stock specifications. Rated at 425 hp at the crank (depending on steel crank, ECM calibration, etc). This 8.1L engine will ONLY work in 8.1L applications. This long block will NOT work as a 454 ci replacement. $1,100.00 core charge.

This 8.1L, 425 hp, HO marine engine comes equipped with the following:

  • 8.1L GM marine engine (standard rotation)
  • Corrosion resistant black urethane paint
  • Vortec cylinder heads, engine block and all internal components
  • Roller cam and roller lifters
  • 8-quart marine oil pan
  • Fel-Pro marine head gaskets 
  • Harmonic balancer, timing cover and circulation pump
  • One-Year (parts & labor) Warranty
  • Will ONLY work in existing 8.1L applications
  • Standard rotation ONLY.
  • The $1,100.00 core charge is in addition to the price shown above.

    Steel crank option available for an additional $600.00

    Email or call (248) 524-9600 to place your order, or for a shipping quote.

    Same Day Shipping

    In Stock In Stock parts ship today if ordered before 3:30

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