Evaporust by the barrel?
Block still soaking but pulled out a cylinder head, rinsed and blew it off. The thickest layer of rust that had "crystallized" was still stuck there. That nasty rust flaked off easily by scraping an ice pick (by hand-no hammer) over those areas. I will still try some more abrasion with a Dremel tool or electric drill. There seems to be a date tag in the fotos "0532". Anyone know what date that corresponds to? (These are open chamber "915" small block heads with 1.88" intake valves)
Block still soaking but pulled out a cylinder head, rinsed and blew it off. The thickest layer of rust that had "crystallized" was still stuck there. That nasty rust flaked off easily by scraping an ice pick (by hand-no hammer) over those areas. I will still try some more abrasion with a Dremel tool or electric drill. There seems to be a date tag in the fotos "0532". Anyone know what date that corresponds to? (These are open chamber "915" small block heads with 1.88" intake valves)
