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Small Block performance upgrade suggestions

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Old 05-21-2003, 06:15 PM
  #21
BraunCapital
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Actually, after selling my engines, I think I will be closer to $6,000.
 
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Old 05-21-2003, 06:27 PM
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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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Old 05-21-2003, 09:18 PM
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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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Old 05-22-2003, 01:06 AM
  #24
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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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Old 05-22-2003, 07:44 AM
  #25
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Vortech has a supercharger system for the carbureted SBC for about $2400.00 complete.
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Old 05-22-2003, 09:44 AM
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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.

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Old 05-22-2003, 04:47 PM
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Thank you for the information on the Vortech supercharger and the polished crossover kits.
 
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Old 05-23-2003, 07:18 AM
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How about this
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Old 05-23-2003, 07:22 AM
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Another
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Old 05-09-2011, 03:45 PM
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What exhaust is on that SBC?
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