That would explain why all the piston tops are clean too, check that intake
manifold out good, if it leaked to the inside of the fuel air chamber it
would go to all pistons, my block froze last winter and I have the 351, 1993
and the only thing that happened was the core plugs blew out. They do have a
big oil cooler on them that could be a remote possibility, I don't think it
is though, my oil cooler blew out and it looked fine inside on the water and
oil side (I soldered it back together, no problems) and I ride in only salt
water. I didn't read what u ride in? I was going to change the risers and
exhaust manifolds this yr. only about 400 hrs. on motor. If that water pump
is solid on the back and has just the 2 water passages I could see a problem
there, at gasket or pump housing as it looks as the back comes in contact
with the oil. was it allot of water in the oil? well it sounds like u are
getting allot of good remarks, GL figuring it out, I'm just a shade tree
auto. mech. trying to help. In NJ


"Bill Sheffield" wrote in message
...
You say that the boat is stored outside..... I have seen a lot of boats
that
have water in the oil. Sometimes it is caused by rain water leaking into
the
motor box and running down the carb. Check this possibility before you go
any further....

Bill