with that low of miles Their shouldn't be any carbon build up to start with. Esp. with todays fuel. And if you had No smoke (white)coming out the tail pipe then I don't think you had water
in the chambers.
But you should still flux everything. Esp.the head, An if you had seats installed in the head They Could?? have been cut to deep and maybe??? hit the water jacket?? To me from the photos the gasket looks to have had a good seal.
God doesn't like ugly.
