Remanufacture and Install Your Engine Service

7.4 / 454 Remanufactured Marine Engine

1973-90
SKU
DM25




7.4 / 454 Remanufactured Marine Engine

Aerohill Engines

We at Aerohill Engines can ship you an 7.4 / 454 Remanufactured Marine Engine direct from our warehouse in Concord Ontario.

To help you identify your engine please read through these tips:

Check the surface in which the intake bolts onto. This engine has a Round intake port.

When the engine is removed you can then check to see if it has a 2 pc rear seal

The engine block should have block casting numbers: 959, 445, 286, 775, 289

The rated horsepower of this engine is 330 however your engine may vary slightly depending on your accessories and ECU programming.

This engine is a standard rotation engine.

Other things to check for: Mark IV, flat tappet, 10 bolt front cover, round intake port. 2 bolt main.

This engine is compatible with

Mercruiser Marine,

325 GM 427 V-8 1969-1972
330 GM 454 V-8 1977-1981
330 GM 454 V-8 1982-1987
370 TRS GM 454 V-8 1978-1985
370 TRS GM 454 V-8 1985-1987
7.4L Bravo GM 454 V-8 1988-1991
400 TRS GM 454 V-8 1980-1986
440 TRS GM 454 V-8 1983-1986
454 Mag. Alpha GM 454 V-8 1986-1988

Volvo Penta Marine,

OMC Marine

Indmar Applications.

5.7L

If you need help with your selection email us your serial number and question to Customer Support.

More Information
SKU DM25
Description

7.4 / 454 Remanufactured Marine Engine

Aerohill Engines

We at Aerohill Engines can ship you an 7.4 / 454 Remanufactured Marine Engine direct from our warehouse in Concord Ontario.

To help you identify your engine please read through these tips:

Check the surface in which the intake bolts onto. This engine has a Round intake port.

When the engine is removed you can then check to see if it has a 2 pc rear seal

The engine block should have block casting numbers: 959, 445, 286, 775, 289

The rated horsepower of this engine is 330 however your engine may vary slightly depending on your accessories and ECU programming.

This engine is a standard rotation engine.

Other things to check for: Mark IV, flat tappet, 10 bolt front cover, round intake port. 2 bolt main.

This engine is compatible with

Mercruiser Marine,

325 GM 427 V-8 1969-1972
330 GM 454 V-8 1977-1981
330 GM 454 V-8 1982-1987
370 TRS GM 454 V-8 1978-1985
370 TRS GM 454 V-8 1985-1987
7.4L Bravo GM 454 V-8 1988-1991
400 TRS GM 454 V-8 1980-1986
440 TRS GM 454 V-8 1983-1986
454 Mag. Alpha GM 454 V-8 1986-1988

Volvo Penta Marine,

OMC Marine

Indmar Applications.

5.7L

If you need help with your selection email us your serial number and question to Customer Support.

Short Description 1973-90
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