D16A9 (ZC) engine turbo about 12 PSI. ARP studs and OEM gasket hold for one week. I guess i was beacouse bad timing (AFR and EGT were 100%wright) . But sleeve walked, Iron sleeves got back its diameter. One aluminium sleeve din not went back and there is a distans between aluminium and steel sleve like 0.1mm. Shell I buy new block or can I just bend aluminium sleve back using block guard?