| You have piston contact with the head as well as donation and foreign object debris rattling around in that combustion chamber. As it stands I'd say no. I suggest you tear the heads down and have them crack checked, lap the valves to check concentric of the valve job to ensure they still seat and surface the heads. You will need to replace the two pistons in question as they have experienced a lot of detonation/physical damage that most likely has caused ring land damage. The compression (first ring) will be in question but you won't find that out until you tear the engine down to inspect all assemblies. If it were me I'd tear it all down and inspect everything and do a freshen. From there you'll at least know where things are and what needs to be replaced or you can replace parts for peace of mind as you go back to assembly. Hope that helps.
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