After it being a total loss I wouldnt even put the heads back on it, Get a long block, put the intake back on and go... Cant tell you about mechanics in your area as I am in central Indian. I am an auto mechanic and after I get a car that has been ruined by someone that doesnt know what they are doing it is best just to start over. Then you have no debris left from your heads let alone3 have they been hit by the pistons and possibly cracked