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  1. #1
    Charter Member #232 Charter Member Audiofn's Avatar
    My Boats:
    1979 Formula 302, 99 Formula 353, 81 Donzi 18 2+3 with 454
    Join Date
    Oct 2000
    Carlisle, MA USA

    What year did the engines change Generations

    From the Mark4 to the Gen V and then the Gen VI?

    Put your best foot forward!

  2. #2
    Registered Biggus's Avatar
    My Boats:
    02 Cigarette Mystique T/S
    Join Date
    Apr 2001
    Naples, Maine
    I`m pretty sure the mark4 was discontinued in late 1990 then the mark 5 until 1996 when the mark 6 was introduced.

  3. #3
    Mike J
    Jon: Theres a very good book
    about Gen IV, V amd VI 454
    BB motors.
    Its A HPBooks-1357 By Mike
    Really tells what you are asking about.
    Mike J.

  4. #4
    Charter Member # 55 Charter Member Griff's Avatar
    My Boats:
    ..........32........... Active Thunder
    Join Date
    Oct 2000
    Merc has Gen V's listed from 1992-1997 and Gen VI's from 1996 on. Looks like 1996-1997 could be either V's or IV's.

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