Whatcha up too ??

I don't know anything about the 525SC. But, seeing as they are SC, and only putting out 525 hp, I'd guess that overall they are fairly "mild" build wise. Seems like they'd last a pretty long time.

 

Jim5656 has a 32 Fountain with them. I think he runs mid 80s.. Everything i heard about them is +.

 

What's the good, bad and ugly on these things?

I hear they are bullet proof if treated properly, what's that mean?

Everyone recommends a service at 250-350 hours, what would the "typical" cost of something like that mean?

Had a 29 Fever with a single 525SC. The only real maintenance issue with these motors is the blower bearings - rebuild the blower about every 200 - 250 hours and tou'll be fine, as long as you keep the stock pulley. Add a smaller pulley and the life of the bearings decrease. The compression is relatively low and they tend to be a little weak on the low end, but acceleration is good once the huffer winds up.

Blower rebuild is about $900 =/- if I recall - I had mine sent to the Blower Shop and they did a great job - quick turnaround.

 

just found a pic of my old 525SC...

 

purdy

 

I've only heard good things about them. I tried to buy one, and I was about two hours late.

 

Great engines. A buddy of mine has a pair. 400 hrs. and only supercharger rebuilds. If it wasn't for a leak in a cmi header, they would still be in the boat. Ran as good at 400 hrs. as they did new. Very well maintained, and worth it.

 

I heard these motors are based on a 454 block - is that true?

What would the average rebuild price be for the entire engine??

 

I would like to convert my 454/420's to 525's. That would be cool.

 

I have owned mine since new 1998 in a 26 sonic and have had great luck. But I have always taken care of her to and never really beat on her.206 hrs

 

Thats all it is
454 Mag engine, all forged internals with a 174 (discontinued now a 177) Weiand (Holley all the same company now) blower up top with a holley 850 CFM marine carb.
Cast iron rectangle heads

Good engine for the price since everyone wants to go 502 or bigger these days.
Great engine to mate to a bravo as well on a small to moderate weighted hull.
Seen PLENTY of 42 fountain triples with the first Gen 525 sc's in them, all ran very well.
Dont load up, dont surge at idle, they are very well tempered.

 

a guy on enay was selling a pair of black 177 marines with intakes and 850s on them. He was going bigger blower. He wanted $3k for the pair and I missed the auction - damn!

 

The 525SC's had 1050's on them.

 

Luke, there is a 99 600SC in Kingston for sale.