The plastic won't melt but it will get brittle fairly quickly and then
be liabel to fail. What I think you should use for this is an adel
clamp from any supply house. Google is your freind

Hi,
I'm adding domestic hot-water heating to my new engine and it calls for
the 5/8" hoses to go from the front of the engine down and around to the
back. Normally I'd use cable-ties to hold the hoses in place, but wouldn't
the engine get too hot for the plastic? Should I use wire? Are there
things made specifically for this?

I'm concerned the vibration of the engine will eventually wear through
the hoses...

Lloyd Sumpter
"Far Cove" Catalina 36: http://www.user.dccnet.com/lsumpter/engine/