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Small Block performance upgrade suggestions

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Old 05-20-2003, 05:59 PM
  #1
BraunCapital
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Question Small Block performance upgrade suggestions

My engine compartment will only fit 2 small blocks. I presently have 2 newer 350 Magnum EFI Mulptiport engines.

Please suggest horsepower upgrades.

Thank you very much. RB
 
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Old 05-20-2003, 06:31 PM
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bobby daniels
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It depends on how much money you want to spend (cubic dollars)
you can put a blower on which is the best but most money or you can stroke it to a 406 or 383 and make a very good motor
there is ton we can do ,,give me the amount ,,,wecome to the board
 
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Old 05-20-2003, 06:36 PM
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BraunCapital
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Would $4,000 to $6,000 do anything?
 
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Old 05-20-2003, 07:22 PM
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bobby daniels
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both motors alittle ,,each motor alot,,,,, thats worth the money I should say
 
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Old 05-20-2003, 07:30 PM
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BraunCapital
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How about $3,000 per engine?
I am considering Stainless Marine manifolds and risers as a start. Any thoughts?

The engines are out of the boat, therefore now may be an ideal time to make some upgrades.
 
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Old 05-20-2003, 07:32 PM
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BraunCapital
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Also...Any thoughts on "lab finishing" the props?
 
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Old 05-20-2003, 09:00 PM
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bobby daniels
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yes that may help a few MPH , I would add a stroker crank and pistons,and port the heads and go to like 9 to one compression and change cams with the stainless exhaust and that would make a potent package for alittle more than you were talking

To start with port the heads and angle cut them to get 9 to 1 comp. add you exhaust and a cam and reprogram the ecu and that will be a good start
 
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Old 05-20-2003, 09:29 PM
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BraunCapital
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Thank you for your thoughts.

Would it be better to trade for Scorpions (340 hp)? My 350 MPI EFIs are newer. I think I can get them on a trade plus $6,000.
 
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Old 05-20-2003, 09:45 PM
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what about this 92 350mag pretty stock I just put
K&N filter, K&N snubstack , EMI thunders, and Corsa Q & Q
thur hull. this is in a 25 foot 3800lb dry single step boat
How much to get a reliable 400hp
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Old 05-20-2003, 10:36 PM
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If your motors don't have them already, upgrade to the vortec heads. Looks as though they will flow nearly 400 hp without a lot of work. Not sure how much as you are limited in cam choices with the wet exhaust. i'll dig up the article as soon as i can.
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