Frozen block

[jim powers]

i would suspect that you will find damage some where if not in lifter valley then possibly along and above pan rail,i have had it happen years ago and the freeze out plugs never even moved,when storing a engine for the winter mix the antifreeze in motor at operating temp and then drain it out,there is no good reason to leave it in over the winter,i always run a water pump lubricant in radiator to combat rust as i never leave water in block even during the normal race season,always fog motor before storage and back off the rocker arms hope this helps