Actually, the term 'freeze plug' is misnomer. While they may pop out when
or if the block water freezes, (although usually the block just cracks)
that's not what they are there for. They are more accurately termed core
plugs and are use when the block is cast to hold and allow for the removal
of the inner sand core during and after the casting operation. They are
then plugged with 'core plugs' to seal up the block. Some are also there
to provide access for machining certain areas like the cam bearings.
Just thought you might like to know :-)
Barry Schwartz in San Diego, CA
Bschwartz@encad.com
72-V6/5sp Spitfire ( daily driver )
70 GT6+ ( when I don't drive the Spitfire )
70 (sorta) Spitfire ( project )
73 Ford Courier ( parts hauler )
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