1989 272
01-02-2015, 12:43 AM
#11
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I also have this set up with stock 350mag/alpha 23p Spinelli (same direction drives). Like ICU, 57-58 every day. Trimmed out on the right water gps 60.0 a number of times. My boat feels well balanced and jumps on plane well fueled with four on board effortlessly...small block weight saving has to contribute largely. I'm just north of 500hp, an additional 200hp in a small block package with counter rotating drives would be a great combo IMO. No arguing the torque of the bb motors though. Interesting to see, if you go this direction.
01-04-2015, 02:37 AM
#12
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The current engines are 454 /365 mag says the flame arrestor covers. I have owned the boat 6 years, has stainless marine exhaust no other upgrades. lost port engine due to manifold failure (they were on the boat when I bought it) broke a rod bent the crank and hole in the block. current speed is 68 spinning a pair of 25 mirage plus. I am thinking that the lighter small blocks will help reduce bow lift and give a more even ride.
Dose anybody have a 272 with mild built small blocks real numbers?
Dose anybody have a 272 with mild built small blocks real numbers?
I see your speed dropping to like 60mph with the sbc's unless you can get like 425hp out of 383's and then maybe you reach 70mph
Last edited by Diego9040; 01-04-2015 at 02:40 AM.
