Mitsubishi Lancer Register Forum - View Single Post - EVO 6 / 4G63 - re-torque of OEM head bolts possible?
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Old 25-03-2019, 08:46   #2
plip1953's Avatar
Join Date: Feb 2008
Location: West Yorkshire
Car: Evo X RS
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What I can tell you, purely from my experience of being a customer of an engine builder on multiple occasions, is that a head would be torqued initially and then re-torqued after a relatively short period of usage. Whether this is the optimal approach, or simply the chosen path of my particular engine builder, I really don't know. And I have also known a head be re-torqued if signs of head lift if have detected (which generally showed as cylinder pressure leaking into the cooling system ie rather than in any way oil related). But that was more as temporary measure to get through an event rather than as a long-term fix.
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