On Tue, 23 Mar 2010 17:41:47 -0700 (PDT), Tim
wrote:



Bob, if you're running a raw water system I think I'd just the simple
stuff with the nylon mesh inside. My hoses on my 350 GM are common
from NAPA. even the ones that carry the water to the manifold risers.
Now from the manifolds to the outdrive or exhaust ports in the hull,
that might be a different issue that I have no knowledge of.

this is actually an inboard (surprising for a 27' boat, but it has a V
drive). the marina guy said i could probably get what i need at the
autoparts store, but i don't think they're actually any cheaper.

these hoses go from the risers to the muffler, then to the exhaust
ports.