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Tel: 1-(833)-736-6867    Email: tcmenginesus@gmail.com

New 7.4L Gen VI Marine Base Engine

(replaces years 1991-present)

This is a brand new 7.4L/454 c.i. Gen VI Marine Base Engine. This engine will replace 7.4L marine engines used in Mercruiser, Volvo Penta, OMC, Crusader, Indmar and other inboard marine applications between the years 1991-present. This is a perfect stock replacement for those engines that have suffered from freeze damage or any other type of engine failure.

This Base Engine Package includes:

  • new engine block, heads and all internal components

  • valve covers

  • timing cover

  • oil pan

  • harmonic balancer

Specifications:

  • 1 Piece Rear Main Seal

  • Standard rotation

  • Cylinders: 90 Degree V8 Cylinder

  • Hydraulic Roller Camshaft

  • Compression Ratio: 8.75:1

  • Bore: Standard

  • Firing Order: 1-8-4-3-6-5-7-2

  • Oil Pan Capacity: 8 quarts

  • Oil Type: SAE 10W40 

  • Horsepower: 340 hp @ 4400 RPM

  • Torque: 435 lb-ft @ 3200 RPM

New 7.4L Gen VI HO Marine Base Engine

(replaces years 1991-present)

This is a brand new 7.4L/454 c.i. Gen VI H.O. Marine Base Engine right out of GM Marine. This engine will replace 7.4L marine engines used in Mercruiser, Volvo Penta, OMC, Crusader, Indmar and other applications between the years 1991-present. This is a perfect stock replacement for those engines that have suffered from freeze damage or any another type of engine failure.

This Base Engine Package includes:

  • new engine block, heads and all internal components

  • valve covers

  • timing cover

  • oil pan

  • harmonic balancer

Specifications:

  • 1 Piece Rear Main Seal

  • Standard rotation

  • Cylinders: 90 Degree V8 Cylinder

  • Hydraulic Roller Camshaft

  • Compression Ratio: 9.6:1

  • Bore: Standard

  • Firing Order: 1-8-4-3-6-5-7-2

  • Oil Pan Capacity: 8 quarts

  • Oil Type: SAE 10W40 

  • Horsepower: 392 hp @ 5200 RPM 

  • Torque: 447 lb-ft @ 4000 RPM