thermostatically controlled oil coolers
 

Am looking at the hardin Marine # 620-700...are they any good...have heard both ways..some love um and some had other issues with them..Would like to hear REAL WORLD feedback...Who's got the best price one one

anyone running this....would like to get on the water this year still...can someone help with some info

I have used quite a few of them. I have been pleased with them. A few years ago, I had problems with a few of them bypassing to much oil through the cooler so the engine wouldn't build any temp. They changed the design a little and changed the thermostat manufacturer and that fixed it. I have used a quite a few in the past few years and they worked great. How much power are you running?
Eddie

You just have to make sure that they are properly winterized:lolhit:

700hp...what is the proper way to winterize them

I am thinking you should be good.

You don't really winterize them. I was kind of making fun of a question that I asked Eddie.

should i go bigger to be safe...

They offer 2 different sizes. I would use the larger of the two. I think it is rated for around 1000 hp. The smaller one is going to be borderline for your power. Give me a call and I can get one for you.
Eddie

Here is the one you need.
This is with power steering.http://www.hardin-marine.com/detail~ID~859.aspx

This is engine oil only....no p/s.http://www.hardin-marine.com/detail~ID~866.aspx