It has been great and would buy another boat with them in a heartbeat. The only other major thing I had to do was replace the stock Gil exhaust. It had hairline cracks at the top of the exhaust manifolds. That to could be contributed to salt usage.

Love my 525SC - I agree with others - once you have a blower motor, its hard to go back to NA...

The only issue I have had was a blower rebuild at about 225 hours.

do these motors have the valve spring problems that many of the early hp 500's had? and does anybody know what type of boost they are running or if any extra horsepower is available with pulley changes?

I don't believe that these motors have the same valve spring issues as did the HP500's. I am running a smaller pulley with 6 - 7 lbs of boost, but no idea of what the HP gain is - never dyno'd the motor...

thats good to know as well, I've always believed stock can be made better, I just dont want to hurt reliability, Nothing worse than getting friends together for a good day out, and then mechanical problems stop it. I think we've all been there before , I'm alos not one that has to be the fastest, I think 70-80 is great for a fun boat that can be used for family as well.

ain't nothin' worse than a broken toy...

lol you're right, cept when the broken toy has left a few people with nothing to do that day! then ya feel doubly worse, as you stuff is broke and now ya let people down!

My original engines were 468 that copies the 525 for the most part cept I put a 256 blower and 2x700 carbs. They ran great till a vacuum/boost line to the carbs came loose, leaned the engine and BOOM. Went to 509's. I love the reliability, fairly easy start, and you can pound on them all day!

None of my Springs showed any signs of damage with 335hrs. They didn't check pressures since I replacing them anyway. They also don't have the high lift cams of the HP500's and don't need as much spring pressure. Stock Cam is .531/.553.

I'm liking this more and more, I really appreciate yoour guys input. I like the fact that they are so sound, I also DIG the fact that small changes can be made without hurting the reliability.