Weight of a Mercruiser 3.0
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Weight of a Mercruiser 3.0

  1. #1
    Senior Member jetboatperformance's Avatar
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    Default Weight of a Mercruiser 3.0

    Were using a 3.0 140 HP Mercruiser engine in a project and need to know the fully dressed engine weight (minus drive) , anyone ?
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    Senior Member GT Jets's Avatar
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    Just over 600 pounds...... 635 pounds according to the Mercury Marine service manual from 1996...


    What you need is a Mercruiser 470... Lighter and make 175HP.
    Last edited by GT Jets; 10-12-2012 at 09:32 PM.
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......
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    Banne'd Cobra1's Avatar
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    Must be to hard to go on line and look it up .
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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by GT Jets View Post
    Just over 600 pounds...... 635 pounds according to the Mercury Marine service manual from 1996...


    What you need is a Mercruiser 470... Lighter and make 175HP.
    Glenn belive that number includes the drive unit as well , All the numbers including that that I found in my on line research prior to my posting this question yesterday here included the drive Its hard to Imagine that the little 4 banger could or does weigh as much as an SBC (@ 600+) just was hoping someone from the PB community here might have had a quick helpfull answer or estimation that helped us estimate for the project we were working on which doesnt include using the Alpha drive . As far as using the 3.0 the price was right ! Tom
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    Senior Member GT Jets's Avatar
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    Quote Originally Posted by jetboatperformance View Post
    Glenn belive that number includes the drive unit as well , All the numbers including that that I found in my on line research prior to my posting this question yesterday here included the drive Its hard to Imagine that the little 4 banger could or does weigh as much as an SBC (@ 600+) just was hoping someone from the PB community here might have had a quick helpfull answer or estimation that helped us estimate for the project we were working on which doesnt include using the Alpha drive . As far as using the 3.0 the price was right ! Tom


    Been doing this a long time my man... The Alpha outdrive (upper and lower GC) weighs in at under 75 pounds, the transom assembly and inner bracket only weighs in at about 50 pounds....

    You did state you were including the intake/exhaust manifold (as heavy as the drive....)

    Your "little" motor weighs in between 500 and 600 pounds with the manifold and flywheel...A fully "dressed" small block Chevy is closer to 800 pounds...600 is just the long block.

    They don't call them "Iron Dukes" for nothin'....

    Hey wait a minute, if you have it, weigh it.....
    Last edited by GT Jets; 10-13-2012 at 12:56 PM.
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    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......
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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by GT Jets View Post
    Been doing this a long time my man... The Alpha outdrive (upper and lower GC) weighs in at under 75 pounds, the transom assembly and inner bracket only weighs in at about 50 pounds....

    You did state you were including the intake/exhaust manifold (as heavy as the drive....)

    Your "little" motor weighs in between 500 and 600 pounds with the manifold and flywheel...A fully "dressed" small block Chevy is closer to 800 pounds...600 is just the long block.

    They don't call them "Iron Dukes" for nothin'....

    Hey wait a minute, if you have it, weigh it.....
    Hmmm good call Glenn ,took your advice , used not one but three different scales 2 digital and one analog this was the highest reading (and minus the 35 lb iron flywheel and carb but does include part of the HD engine stand and a piece of 4x4 and ....

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    Senior Member GT Jets's Avatar
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    Quote Originally Posted by jetboatperformance View Post
    Hmmm good call Glenn ,took your advice , used not one but three different scales 2 digital and one analog this was the highest reading (and minus the 35 lb iron flywheel and carb but does include part of the HD engine stand and a piece of 4x4 and ....


    I am utterly shocked... Seriously. The bobtail re-power kit has a shipping weight of 529#...Not making it up...That is one heavy azz crate.

    GT
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......
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  10. #8
    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by GT Jets View Post
    I am utterly shocked... Seriously. The bobtail re-power kit has a shipping weight of 529#...Not making it up...That is one heavy azz crate.

    GT
    To be fair and after what you said I was still a doubter , Josh and I each took an end and picked it up as a "field test"
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