Rest assured that if you overheated it and blew the head gaskets, the
heads are at the very lest warped. When coolant is lost, the head can
get very hot quickly for hot exhaust gasses flowing through them and
warp or crack. It need the heads pulled and the very least to
determine the extent of damage and go from there. I have taught all my
kids that if your engine get hot, shut it down no matter where you are
because continuing to drive it will only cause more damage and can
ruin engine too sometimes. I recentyly pickup up a 99 cheap car to
repair that the previuos owner had run the water out of it. I will
decide whether it can be repaired or if the engine needs to be
replaced after I pull the head off in a week or two.
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The SnoMan
www.thesnoman.com