what would be a sign head gaskets have been replaced

[Seasparrow]

Is there anything that leaves a clue the heads have or have not been off?

Thanks
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[CarlosV]

Same question

I have the same question

 

[gaber6]

Maybe the exhaust gaskets would look newer? Possibly edge areas of the new HG can be seen as well and might look newer. Probably hard to tell.

 

[weaves]

If you can see paint marks on the head bolts that are all pointing in the same direction, that would be a good indicator the head gaskets have been replaced. Some mechanics will use paint marks to set the final 90* + 90* final torque while others will use an angle gauge.