Rocker shaft hold downs

I just checked out the Hughes website for part number 7440 hold-downs and they have changed the design of that kit since I bought mine. The ones shown aren't anything like the ones they sold me. My hold-down blocks are a square block and not finished off on the ends like the ones in the picture, so that tells me that they have made a change to the design that I have, in which case they may no longer need to be machined. If thats the case, I wish they would of had that style back when I put my engine together. It would have save a whole lot of time and measuring!!!