are the rocker arms on a gen 2 with a 3.8L pedestal mount or stud mount. i havent taken my valve covers off in a while and dont remember. im going to get roller rockers and want to know how the rocker arms are attached to the head. is there a threaded stud out of the head or is the head threaded for a bolt? also what size is the stud or pedestal is it 3/8" or 7/16".