Can an over-bored 390 big block be saved?

[magster65]

Re: Can an over-bored 390 big block be saved?

How about this one;<br />632 Merlin = 4.60 bore x 4.75 stroke... no bull, in this 22' Scarab. Dyno sheet says just over 900 hp @ 6500 rpm (sea level). It's the most ridiculous boat I've ever been in. 75 mph cruise at 4000 rpm and that was only about 1/2 throttle. 3/4 throttle would net 90+ but it would chine walk dangerously no matter how hard you fought the wheel. Full throttle = certain death as it accelerates hard from 90 if you dare. Try that motor in your pickup. (kidding of course)<br />

 

[heycods]

Re: Can an over-bored 390 big block be saved?

Originally posted by magster65:<br /> How about this one;<br />632 Merlin = 4.60 bore x 4.75 stroke... no bull, in this 22' Scarab. Dyno sheet says just over 900 hp @ 6500 rpm (sea level). It's the most ridiculous boat I've ever been in. 75 mph cruise at 4000 rpm and that was only about 1/2 throttle. 3/4 throttle would net 90+ but it would chine walk dangerously no matter how hard you fought the wheel. Full throttle = certain death as it accelerates hard from 90 if you dare. Try that motor in your pickup. (kidding of course)<br />

No thanks. I loved speed when I was younger, but nowdays I have a limit, 100 on a motor cycle, 80 on a boat, and a meager 160 in a car, I would limit pickup speed to 120. I know I got old and Im a puss.

 

[CN Spots]

Re: Can an over-bored 390 big block be saved?

I'll say it's ridiculous... no trolling motor, no flippin deck, no live wells... and they call it a boat. HA! <br /><br /><br />-and at $2+ a gallon, I'll stick to the more fuel efficient 390. <br />(hmm, "fuel efficient 390".. is that an oxymoron?)<br /><br />spots

 

[magster65]

Re: Can an over-bored 390 big block be saved?

Originally posted by CN Spots:<br />-and at $2+ a gallon, I'll stick to the more fuel efficient 390. <br />(hmm, "fuel efficient 390".. is that an oxymoron?)<br /><br />spots

Well, I never thought I'd hear the words 'fuel efficient 390' either