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Thread: 4.3L Vortec Marine Intake Conversion Helpfull Hints:

  1. #361
    Hey Scott, thanks a lot for your great post and work.
    Did you remove the pictures you were showing before? I don't see them anymore.
    FYI I'm making the same mod on my 97 Blazer.
    Thanks again
    Laurent (France)

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  3. #362

    Missing Photos

    Yeah bummer... getting ready to start my truck up shortly with this marine conversion... and I realized I need to replumb my coolant lines. I wish the photos were available on this thread. Any ideas on if they can be obtained anywhere?

  4. #363
    Hi everyone, new guy here. I read all through this thread and decided I need to do the marine intake swap on my 2004 GMC Sierra 1500 with a 4.3v6. My recent searches come up with complete manifold assemblies, but are labelled as 2007 or newer. Are there different variations of the marine manifold?
    Example linked below:
    https://www.ebay.com/itm/142832330832

    Will that assembly work on my truck? I'm not looking to add a turbo or supercharger at this time, just need better mileage and reliability.

    Thanks for your help.
    John

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