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348 - 409 Marine question.

Discussion in 'The Hokey Ass Message Board' started by teddyt, Sep 10, 2013.

  1. teddyt
    Joined: Sep 24, 2010
    Posts: 99

    teddyt
    Member
    from U.S.

    Were there any companies that made the big marine aluminum timing cover/motor mounts for the Chevy 348 - 409 engine? If so,......anyone have any pics?
     
  2. Mark Hinds
    Joined: Feb 20, 2009
    Posts: 594

    Mark Hinds
    Member
    from pomona ca

    Can't say anything about the front mounts but any rear mount from a chevy small block too a big block will fit. The bell housing bolt patterns are all the same.
     
  3. PackardV8
    Joined: Jun 7, 2007
    Posts: 890

    PackardV8
    Member

    We pulled a pair of marine 409"s a while back and they had automotive timing covers.

    The only thing I remember is the Mallory distributors. Only one had a tach drive. Always wondered how they knew how fast the other engine was turning?

    jack vines
     
  4. flyin-t
    Joined: Dec 29, 2004
    Posts: 1,353

    flyin-t
    Member

    Nicson made everything needed to convert a W engine for marine use and there's a set of 348/409 exhaust manifolds on ebay right now. At 375 bucks they're a steal.
     

  5. daliant
    Joined: Nov 25, 2009
    Posts: 684

    daliant
    Member

    You can tell by the sound the engines make and by the amount of vibration, when twin engines are running out of sync you can usually hear and feel a rhythmic hum.
     
  6. barbara
    Joined: Nov 2, 2009
    Posts: 82

    barbara
    Member
    from wisconsin

    i know this thread is a little old, but to answer your question...yes. cal marine made an aluminum timing chain cover/front motor plate. it had a provision in the front for a cam driven fuel pump or water pump.
     

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