I forgot I had these. Tried to sell them at a local car show, and buddy took them for me, been sitting in his garage ever since. These are rebuilt, screw in studs, guide plates, and springs good to .550. With the guide plates, you can run stock SBC rocker arms instead of the self aligning ones, which IIRC are Vortec specific. I have some pics, but crappy camera so can't zoom in on them. They are ready to bolt on. Asking $400, or trade for something interesting. I can ship, and think it was $90-ish to FLA from NYS.