500efi to 575sci conversion, what's needed?
#12
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Back to your original question............ there is nothing required to speak of to take out your 500s and drop in 575sci motors, check hatch clearance to see if they will fit. They are the same base platform (except 500s have roller cam already) same exhaust, etc...
That being said, I also have 575s warmed up to 700+Hp and they are going to be awesome. But to get them that way you are looking at 10K+ per motor to have someone do it for you, or 6K per motor doing it yourself (depending on how much machine work needed). You might as well spring for the whipples and be more MUCH more reliable with the same hp at the same price.
just my .02
That being said, I also have 575s warmed up to 700+Hp and they are going to be awesome. But to get them that way you are looking at 10K+ per motor to have someone do it for you, or 6K per motor doing it yourself (depending on how much machine work needed). You might as well spring for the whipples and be more MUCH more reliable with the same hp at the same price.
just my .02
#13
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Well. Lets break it down then.
Your boat will always be worth more, a lot more, with blue merc engines in it. So dropping the stock power for carbed 540s will cost you down the road.
EFi with knock sensors, timing control is safer than the carbed 540s
No one said you have to buy the whippples new, search the market and find some take offs. They pop up at least 4 times a year on here.
Buying used 575sci can get expensive as well. Me personally I would not buy a used engine without having my guy tear them down before install. He seems to anlways find something not right.
The whipples will be money in the bank. Your boat will have stock blue mercs for resale, you can pull of the whipples and sell separately and recover most of the money spent on them.
Dustin at whipple has an extensive database of ECU tunes to make sure your whippled engine is running right, very valuable stuff without paying for a custom tune.
#14
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Hey guys I'm debating trading/buying a pair of 575s for my 31 american offshore, I really wanna get into the triple digits, and the 500efi motors that I have aren't going to do it. What's all needed to put 575s in? And if anyone is interesting in trading let me know, engines have 170hrs on them and are spotless!
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https://www.youtube.com/watch?v=_X7ldgGrZGA
I had a pair of n/a 540's 650ish HP -in my 31 Awesome.. put me in the 100MPH club real easy
sounded bad A$$
https://www.youtube.com/watch?v=_1IWae05ops
https://www.youtube.com/watch?v=SgPRiBGTZ1o
I had a pair of n/a 540's 650ish HP -in my 31 Awesome.. put me in the 100MPH club real easy
sounded bad A$$
https://www.youtube.com/watch?v=_1IWae05ops
https://www.youtube.com/watch?v=SgPRiBGTZ1o
Last edited by Ran-Dom 32; 09-18-2014 at 09:03 AM.
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#18
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there's one in the classifieds 6K came off a 500 EFI looks clean 20 hrs
http://www.offshoreonly.com/classifi...o58711-en.html
http://www.offshoreonly.com/classifi...o58711-en.html
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