Originally Posted by SS RRR

I'd be a little leary about buying those. A person I knew from another board bought something similar to those (NSA) and because the rocker body was so huge they bottomed out on the hex part of the studs, pulled two studs out of the heads, all the rockers were gouged where it made contact on the studs, bent the pushrods from the two studs that were pulled out and most of the other pushrods were eaten from being pushed into the guideplates. He didn't know a whole lot and had a shop install them who of course didn't know WTF they were doing.
If you are going to go with those make sure to check the rocker body to stud clearence.

Originally Posted by LesPaulGoth

I'm sure they will work fine, you just have to have the correct size pushrod, and lash the rockers properly. My guess is that when they installed the rockers, they just sinched them down without even taking into account valve lash, and they were too tight to begin with.