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05-21-2003, 06:15 PM
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#21
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Guest
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Actually, after selling my engines, I think I will be closer to $6,000.
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05-21-2003, 06:27 PM
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#22
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Registered
Join Date: Mar 2002
Location: cleveland
Posts: 5,626
boatless... with money in the bank!!
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get the scorpions for that price of add a coolcharger to each motor best bang for the buck and reliability... i also went through this w/ my 28ss with t 350 mpi's i decided on just getting a bigger boat!!
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05-21-2003, 09:18 PM
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#23
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Offshoreonly Advertiser
 Offshoreonly Advertiser
Join Date: Oct 2000
Location: Fresno, CA, 93722, USA
Posts: 1,169
Engine, speed, powerboats
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Why don't you just supercharge them? Any major mod such as cam, heads, manifold, etc. thats done to the engine will require a cal change and theres only a handful that can even do that, even a smaller amount who have the base cal for the 350 Mag.
Is the engine 2002 or later? Does it have the MEFI3 or ECM 555 ECU?
Thanks,
Dustin
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05-22-2003, 01:06 AM
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#24
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Guest
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Great information! Thank you.
This boat ran 77mph with twin HiPer 320s and Alpha SS drives. The problem is that I kept breaking the Alphas.
The 320s were a Hi Performance engine build by Mercruiser in 1988 and 1989. Powerful engines but they were not reliable. The manufacturer gave me a good deal on these 1995 Mercruiser Multi Port EFI Magnums. I kept the Alpha SSs, but they still kept breaking. So now I am replacing the drives with Bravos, and since the engines are out, I am thinking now is the best time to replace them with Scorpions or do upgrades to these. They have about 100 hours on them.
I think I can switch to Scorpions for a difference of $6,000. Superchargers would cost more than that, right?
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05-22-2003, 07:44 AM
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#25
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Gold Member
 Gold Member
Join Date: Jan 2001
Location: Kissimmee, Florida
Posts: 4,153
'88 Formula F-206 LS
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Vortech has a supercharger system for the carbureted SBC for about $2400.00 complete.
__________________
I'm not a proctologist, but I know an a$$hole when I see one.
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05-22-2003, 09:44 AM
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#26
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Platinum Member
 Platinum Member
Join Date: Nov 2002
Location: Ingleside, Northern Illinois
Posts: 133
2004 Formula 400ss
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If you need a set of polished crossover kits with the thermostat housings for those small blocks I have a pair.
__________________
Happiness is small Craft Warnings!
Last edited by Sonic Steve; 05-22-2003 at 09:51 AM.
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05-22-2003, 04:47 PM
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#27
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Guest
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Thank you for the information on the Vortech supercharger and the polished crossover kits.
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05-23-2003, 07:18 AM
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#28
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Registered
Join Date: Sep 2001
Location: Atlanta,GA
Posts: 406
30' Shadow Cat
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How about this
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05-23-2003, 07:22 AM
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#29
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Registered
Join Date: Sep 2001
Location: Atlanta,GA
Posts: 406
30' Shadow Cat
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Another
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05-09-2011, 03:45 PM
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#30
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Registered
Join Date: May 2003
Location: Milwaukee'ish, WI
Posts: 199
2010 Nordic Evo
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What exhaust is on that SBC?
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