Has anyone tried these Roller Rockers?

[68keyblr]

http://cgi.ebay.com/ebaymotors/302-...ryZ33624QQrdZ1QQssPageNameZWD1VQQcmdZViewItem


I'd like to know how the initial fit was and also how they've held up over time.

 

[eagleautosports]

My Trick Flow rockers look just like them, even the 7/16 stud hole. Not sure what brand they are though. I'm sure they'd be the same as mine and they work really well. No interference with standard height valve covers, either the inner height or around the bolts, I've run them for about 5 years and no problems.