Does anyone have more information about this motor? I am looking to have a boat built and would like to know more about this option.

Thanks!

They make a 575 with fuel inj. but the 525 was a 454, 177 blower w/ 1050 dom. carb 490 hp

Mike-there is a new 525 coming out. It's related to the HP500efi

I did find out it isn't suppose to be available until the 2003 model year, like julyish timeframe.

Curious as to what the changes were for the extra 25hp?

Just saw it at the Maimi show. Has aluminum heads, fresh water cooling, differant throttle body, new CMI headers, uses the new 555 ECM. About $6k more than the 500.

Specs:
500Hp
502 Ci
8.75:1 Compression
87 Octane
MPI

Very similar to the 500EFI just with more HP

Thank's for the information and the pic, closed cooling, that is very nice! $5K for closed cooling and 25HP.. Boating sure gets expensive fast!

Beg your pardon that's 30 more hp!!!!!! When will this Merc rage stop?????? Is MPI worth that kind of money? NOT IN MY BOOK! Really, how much does it cost to build a 500 hp 502 by a good engine builder and then take it further and have him dyno it. Do it right and it will be 95% as good as an MPI motor. Till we have a smoge law to hell with MPI. Sorry Cord I did read about the 525 but I didn't think it was even close to prototype.

Hey Raypanic, I was looking at your picture of the 525 and noticed that I am in the back behind the guy with the grey shirt.

I asked the price and they told me it would be 8K more than 500efi. I cannot imagine that the performance will be much different than 500efi. its only 5%hp more for 6-8K?????? However the closed cooling is a good idea.

My 2 cents