340* Valve Covers

So I got a 1978 360 to make into a stroker. I was not going to use the original valve covers so I figured I'd sandblast them and sell them. When I sandblasted them I found orange paint under the blue. This is why I'm calling them 340 VCs. According to the chart, orange was only used in 70 and 71. Maybe I'm wrong, that's why the asterisk 340*. If I'm wrong, lemme know.
There are no part numbers either. $25 plus shipping from 15332. USA only please

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