Hi
I've just taken the heads off my 4-runner 3VZ-E engine due a blown head gasket. Both head gaskets have a failure at the same place which has also caused some corrosion on the aluminium head between the coolant passage and cylinder #1 (and #6 respectively).
80% of the damage has been removed by a 5 thou skim but I would like to remove the rest of the corrosion if possible (which would probably need 15 thou in total) What is the limit that I can go to for this engine??
Any help greatly appreciated
Darryl T