On Tue, 30 Sep 2003 03:24:00 GMT, "Wildest Dream"
wrote:

I think OB and I/O and IB may be slightly different
though.

===================================

The bigest difference is between raw water cooling and closed cooling
with a heat exchanger. With a closed cooling system the thermostat is
not an issue because there is already antifreeze on the engine side
(or should be).

If you first get the engine up to operating temperature as Dave Brown
advises, you should not have a problem. If you are a "belt and
suspenders" type, drain the block afterwards and be really sure.