496 to 525 swap?
#1
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496 to 525 swap?
I have a 496ho and of course I'm looking for more HPs. Rather than try one of the few upgrades avalible for mine I was thinking about a swap to the 525. This is in a 28 Thunder that weighs in at about 4700. What kind of speed might I expect with the extra horsepower? I know it isn't a cheap route but if you figure the value of mine it might not be to bad. So now the question, what is my freshwater, 170hr 496ho worth?
Thanks
Thanks
#4
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Originally posted by dreamer
that would be 115 hp at the crank
that would be 115 hp at the crank
Now, if you are considering that Dustin Whipple has said that he typically sees 410 - 430 hp at the CRANK on 496HO's, then you're right that your talking about 100 - 130 hp.
#5
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Join Date: Jul 2001
Location: Tinley Park, IL
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Hey boatfreak,
Sounds like you are getting ready for some Cops runs this summer. I hate the price of Mercury blue but it's extremely reliable which is worth everything when you have three good months out of the year to boat. Have you found a good price on a 525 yet?
Dan
Sounds like you are getting ready for some Cops runs this summer. I hate the price of Mercury blue but it's extremely reliable which is worth everything when you have three good months out of the year to boat. Have you found a good price on a 525 yet?
Dan
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#7
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Now, as I said, reality may be that the motor dynos lower than that, as Dustin Whipple suggested.
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I just don't believe it is a good engine for a supercharger. My thought was if you spend $7,000 to charge it and have a problem or even worse major failure then you have pissed away a good engine and your 7 grand. On the other hand if you take that money and a little more to it and switch to the 525 you have a far better engine making that extra one hundred horse, great reliability, and maybe even increased the value of the boat.