valve covers required??
 

if i change my stock rocker arms for ones from any aftermarket, should i change my stock valve covers, or they just match well? this is a mopar LA 360

Depends on that type of rockers you use. Some are big and bulky and some are no larger than stock. Here are mine for example. these are the comp cam steel roller rockers. I have used the stock covers (just had them chrome plated).
http://robs68barracuda.com/416stroker.jpg
http://robs68barracuda.com/416stroker2.jpg
http://robs68barracuda.com/416chrome.jpg