Mercruiser 377 Scorpion Blue motor
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Mercruiser 377 Scorpion Blue motor

  1. #1
    Senior Member Mr. Denton's Avatar
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    Default Mercruiser 377 Scorpion Blue motor

    I'm trying to find some HP/torque ratings for this engine. A buddy has one he might swap for a bigger engine and I'm considering replacing my tired 454 in my 21 vector.



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  3. #2
    Senior Member 77charger's Avatar
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    pretty sure there about 375-390 hp range.

  4. #3
    Senior Member Mr. Denton's Avatar
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    That high? Impressive, hard to find any info, are they rare? At that power to weight ratio, it might work better than a 454mag.


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  6. #4
    Senior Member 77charger's Avatar
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    Quote Originally Posted by Mr. Denton View Post
    That high? Impressive, hard to find any info, are they rare? At that power to weight ratio, it might work better than a 454mag.


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    I take that back just looked up there about 340-350hp but there alsoa lighter package too.I knew someone that had a cat with twin blue scorpions i thought he had told me they were 375hp.

  7. #5
    Senior Member Mr. Denton's Avatar
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    Everything I've read so for days 340hp and 377 cu/in. Lunati stroker crank. I figured higher than 340, you'd think they'd get at least 1hp per cu/in for the price of the blue motors.


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    Senior Member OLD MAN ON THE LAKE's Avatar
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    Thats at the prop.

  9. #7
    Senior Member Mr. Denton's Avatar
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    Here's the boat. I'm thinking this thing scoots along pretty well. 1:50 Bravo1 X with a Bravo 22 wheel. I'd like to see him try my Bravo 24


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