You’ll probably be fine bud. When my water pump blew didn’t take long to evaporate what was left. Not surprised with the hole it made in the rad. had no choice but to keep driving. Red overheat light comes on then limp mode kicks in shortly after. Eventually it cuts out. Let it cool then it was good to again, rinse and repeat few times….didn’t bother it one bit. You may even remember me fitting a the replacement metal impeller (was while ago) never had any head issues or any lasting effects. Hardest part was meticulously getting all the OE plastic impeller shrapnel out.