Anybody every use -18 AN steel braided line for cooling lines from thermostat housing to exhaust? If so, does it resist kinking more than standard rubber heater hose? Do the clamps fit on a normal merc thermostat housing without hitting the other hoses? Any pictures would be great.

Yes it works fine done it many times
Where did you get the -18 line

Can it make this kind of bend like this hose on my stbd exhaust?

I have not purchased the hose yet. I was thinking Earls from summit, but it's kind of expensive.

Yes it will that's the hoses I replaced with it as well. That motor
Looks familiar

If you want the same size as the rubber hose, you have to use -20

Incorrect.

20AN is 1 1/8" ID
18AN is 1" ID
16AN is 7/8 ID

This what he will need. http://www.holley.com/320018ERL.asp

griff is absolutely correct ive done this many times .earls was supplying the hose used on the mercruiser hp 500s .i changed the rest of mine on the engine as well .mercruiser was only useing the braid style on the upper short hoses

wrong you need - 18

My buddys is running -10an feeding his exhaust with some big power. I saw this and asked what his water psi is. 30psi was the answer. And I think his gauges only go to 30psi.

Trying to talk him into at least 1'' or -18an. If you measure a -10an fitting at the flare, I wanna say your about 9/16 id. No good. -16 about 7/8, -18 about 1'' and -20 about 1 1/8.

My stellings accept a 1'' hose, and have 1'' bypass hoses. No dumps off the rear of intake. At 90mph, water psi is about 15lbs. Engines run cool.

Here is a pic of my setup. I used the -18 with the covered clamps. I guess I don't have any pics with the blowers on bu I didn't change any hoses. The last one is a "before pic"