Mopar Performance Aluminum Rocker Arms

I don't really have a whole lot of knowledge on rocker arms...Would these work on a stock 318?

I'm doing a stock rebuild, and I already have an edelbrock performer RPM cam and lifter kit (I know there are much better cam and lifter sets but I had it for 5 years and I need to use it.) I also will have an edelborck performer manifold, using stock 318 heads too...

-will I need custom length pushrods?
-what hold downs and bolts do I use to mount these rocker arms? and where to get them? would the stock bolts and spacers work?