Dug my original intake out and looked over it and saw something odd. I don't have a photo but there is a silver looking round piece in the side of the neck area, still on the cast iron part. I'm not sure if this is original, it looks like some type of repair maybe.... an attempt to get inside the thermostat area without taking the thermostat housing off and this silver round piece was put back in place. Anybody ever seen this type thing?