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Thread: HOW TO IDENTIFY A MARINE 454 ENGINE WHATS BETTER ABOUT EM?

  1. #1
    Junior Member SHOW GUEST
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    HOW TO IDENTIFY A MARINE 454 ENGINE WHATS BETTER ABOUT EM?

    I AM WANTING TO PURCHASE A 454 MARINE LONG BLOCK I FOUNT BUT I AM NOT FOR SURE ON HOW TO BE SURE IT IS A MARINE ENGINE. ANY HELP WOULD BE GREATLY APPRECIATED!

  2. #2
    Senior Member RACING JUNKIE
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    If it came from a boat it might be a marine engine.

  3. #3
    Senior Member DYNO OPERATOR
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    look for major rust and pitting in the cyl's
    Full Time Racing,WASTED $$ division

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  4. #4
    Senior Member DYNO OPERATOR
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    Not much difference minus emission devices

    Marine applications always used hardened valve seat inserts for sustained WOT use, and sometimes they are four bolt mains, where the passenger car and truck versions did not always have hardened valve seat inserts. Some real advanced salt water blocks have a rust preventing coating in the water jackets from aftermarket re-builders on high end stuff. There will not be any vacuum operated emission devices run off a TVS either if it is in tact still.
    Bruce

  5. #5
    Senior Member RACING JUNKIE
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    A LOT OF THEM ARE REVERSE ROTATION

  6. #6
    Senior Member RACING JUNKIE
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    Quote Originally Posted by MEMRACING62
    A LOT OF THEM ARE REVERSE ROTATION
    x 2 and they usually are ran with a gear drive
    "Can't Means You Don't Want To"

    Haven't You Stomped A Ford,,,,,,,,,,,, Lately?

  7. #7
    Senior Member RACING JUNKIE
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    Brass lined intake (water ports) and brass freeze plugs.
    Dave
    Dave
    http://www.racingjunk.com/profile/343797
    "All that is necessary for the triump of evil is for good men to do nothing" Edmund Burke

  8. #8
    Senior Member RACING JUNKIE
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    Is it still in the boat?

    Well, I am just asking....... :lol:
    "Can't Means You Don't Want To"

    Haven't You Stomped A Ford,,,,,,,,,,,, Lately?

  9. #9
    Senior Member EXPERT BUILDER
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    I rent a building to a marine reapir guy, He has a 454 that came out of a boat setting on the floor and asked him about it, from what he says there is not much difference between marine and car motor, the difference is brass freeze plugs and ? ( can't remember ) getting old. LOL but he will sell motor as it sets for $ 400 its a 4 bolt main with oval port heads that need a freshening.
    Blowninjected 540 - when is going fast, Fast enough ?????

    http://www.racingjunk.com/profile/182079


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