[Question] 454 Magnum Gen 4 to Gen 5 swap
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454 Magnum Gen 4 to Gen 5 swap

  1. #1
    Member $BLOWNNYS's Avatar
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    Default 454 Magnum Gen 4 to Gen 5 swap

    Is it an easy swap to replace a Gen IV Mercruiser Magnum 454 (1992) with a newer Gen V Mercruser 454 Bravo 3 365HP.

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    Member $BLOWNNYS's Avatar
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    I'm looking to replacing only the engine package.

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    Some guy obnoxious001's Avatar
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    It should be pretty much a drop in, as the two versions both have the same mounting locations, same exhaust mounting, etc. The Gen 5 will not be set up for a mechanical fuel pump, unless it has the belt driven water pump with the provision for the mechanical fuel pump, the Gen 5 and Gen 6 blocks do not, with some limited exceptions.

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    Great to know. Allready converted to an electric fuel pump on the gen 4. Thanks for the info.

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