[Dru]

Any small block headers designed for correct year C10's..etc should fit fine.

The Ebay headers that are pictured do not appear to have mandrel bent tubes, it appears you spent some money on an engine that you want to perform, so I would use a different set, if it were me.

Stainless would be nice, but unless youre just trying to dress up a low performance motor, Id buy a plain steel painted set from a reputable company first.