I used my valve seat grinder several times more than normal but the bad spot keeps showing up. Here’s a picture

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On a 1941 super 8 are the valve seats separate from the block or are they part of the block? Im not sure if the seat is cracked or just has an imperfection in it.

Thanks for the replies

I have a perfectly straight bar from a machine shop with the top of the block cleaned the worst spot is about .001 out The machine shop called and the head is another story. He said he had to take off .032. He said that was the minimum amount. So before I install it im going to try to make some measurements of the valve lift height. Any other ideas. Im a little worried about that much being removed.

originally i had the head off and noticed the gasket looked like it was about to blow in a certain location. I had an issue with the engine 6 months later. The engine had a miss. I removed the head and the new head gasket was blown in the same location. The block and head had been cleaned carefully before the last gasket was installed. Copper spray was also used It was also torqued 3 times before driving. and retorqued several times after driving over the next couple months. I spoke to the guy at the machine shop today and he said he would reconfigure his machine to surface the head. And he would not use the belt sander thanks for the replys

My machine shop guy that I used for years got killed in an accident. A new guy is running the shop. I took a straight 8 head there and he said he would have to reconfigure his head surfacing machine to do it. He said he was going to try it on a big table top belt sander. Its the same one he uses to surface exhaust manifolds. I'm not sure I want to experiment with an 80 year old head. Last time I checked the Packard plant stopped making them. Has anyone done this.

that has been for sale on ebay for at least a year

in the 80s i painted 1 car with lacquer and a few years later i painted 1 with acrylic enamel. I still have both of those cars The enamel job is holding up the best but none seem to last forever at least for me. But forever isn't as long as it use to be. I won a free ceramic coating at a car show but never used it. Its suppose to be the latest and greatest thing and better than wax. Anyone know anything about that?

I was working on one of my cars that has been asleep since last fall. The paint job was excellent but the past couple years I notice cracks showing up. Is there anything i can do to slow or stop the cracking process. its been painted about 20 years. I tried covering it and not covering it over the winter. Nothing seems to help will a special wax help? its very frustrating to see this. Thanks for any help or suggestions.

nice looking ride !!!! hope you have lots of fun.