I bought this pair of 7-fin Corvette valve covers at a swap meet a few years ago. I had a 61 with a 350 block in it that had plain valve covers with a crankcase breather in them. While I wasn't going to change motors, I thought these would look better and somebody had already modified them with the breathers as shown in the pictures below. Anyhow, I never ended up using them. I know they're not original, but if they might be something you can use, I'll sell them cheap. $40 + $10 shipping. Email at joelschnedler@earthlink.net