Dose any one know what the stock valve covers looked like for my 56? I got a couple of sets and have seen different ones on other cars. maybe pics? I got one set that's green and has raised letters that say oldsmobile rocket in yellow, some aftermarket chrome ones and a set that is taller and has bumps like bump cake...... mmmmmm cake.

 

I believe the green with yellow lettering are the correct valve covers for your engine

 

Thank you, Thats what I was thinking, but not sure.

 

If your valve covers have a row of eight bumps along the one edge then I would assume these are the covers for the high lift cam on a J2...