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2002 Mercruiser scorpion 377 info wanted

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Old 11-28-2003, 11:37 AM
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kevin285
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Default 2002 Mercruiser scorpion 377 info wanted

Hi

Im thinking of putting these in my boat has anyone any info as to power output, good points on the engine and any weaknesses on the engine, what drives would be best for them?

my boat is about 35 feet and would have twin installation

many thanks

Kevin

Last edited by kevin285; 11-28-2003 at 11:41 AM.
 
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Old 11-28-2003, 11:43 AM
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35 feet and SBC.....Do you plan on just idleing around?
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Old 11-28-2003, 11:45 AM
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I was told by a Donzi rep that they are just Ski boat engines painted blue....Diff cams.....VERY expensive paint !!!
I would think you would want the "torque" of big blocks with 35 feet ?
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Old 11-28-2003, 11:45 AM
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wasnt sure on how p[oerful they are I thought they were about 340hp?

are they any good as engines?

Kevin
 
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Old 11-28-2003, 11:47 AM
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From what your saying a bit underpowered for a boat of this size then.

are they highly tuned or basic small block normal output engines?

Kevin
 
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Old 11-28-2003, 11:55 AM
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Sunsation has them in there 32 Dominator as the basic
power I think there getting good deceit speed
then again Suns are a light boat
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Old 11-28-2003, 12:01 PM
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Quote:
Originally posted by kevin285
wasnt sure on how p[oerful they are I thought they were about 340hp?

are they any good as engines?

Kevin
Might seem powerful in a 20 foot boat. It is a 350 with the 400SBC crank=377ci. Go with at least 454s in that boat.
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Old 11-28-2003, 12:10 PM
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I considered the Scorpions when repowering my Cigarette 28 and cound not justify spend the the extra $$ for the blue paint and 60 hp per side...

The 377 put out around 360 hp at the time i looked(2001) and now puts out a reported 377hp.

The standard 350 Mag MPI puts out 300 hp and in my application(7000lb boat), I was able to run 67 mph with bravo drives.

In your case, I think you're gonna need some more cubic inhes if you want some respectable speeds...
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Old 11-28-2003, 12:17 PM
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Thanks for your input Ill have another think no point powering her to find she struggles to outrun a swimmer

Kevin
 
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Old 11-28-2003, 12:34 PM
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I put two scorpions in my 30SS Sonic. Huge improvement over the carb mag 350s (260 HP) that were in there before, but you will definately want more power. Best I have seen is 72 MPH, but 68 is usual top end. I have looked into supercharging these but have not done so yet.

Once they were set up right (fuel injection issues), they have not given me any trouble for the last two seasons .
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