Valve Cover SBC

[KellerMAC]

I have a factory SBC 350 in my 72 C10 and replaced the valve covers several years with a kit that I got from Summit. Tied of the look and want to replace them with the factory covers. I was looking at my old ones and was wondering a couple of things.

First of all, if I get them powder coated, will they hold up to the heat and will they seat with the gasket and not leak?

Second, I really like the look of what Chevrolet did on the VCs of the SBC 283 where they scrolled the word 'Chevrolet' on the top. I see decals that you can buy, but I was wondering if the covers for the 283 would fit or do they make the same valve covers for the 350? Also, do the decals work and withstand the heat as well?

See attachments for examples.

Thanks