I had a full crower valvetrain - the cams, I was only using CTR cams. I was cruising on Alt 19 just after washing my car and was at no more than 4K RPM. A titainium retainer failed and dropped a valve into my motor. I am STILL building my motor. My head was fuxored. My block needed resleeving. All I got was a new bare head and some pistons. They included a new crower valvetrain, but why would I run that?

This of course was after Brian told me that it was "My problem." Then I bought www.crowersucks.com and all of a sudden Brian decided to help me a little so that I would merely leave it blank, which I have done. You dont have the option to buy that domain though, if you get fuxored.

Brian stated that changes were made to the retainer so that my issue would not take place again, but I have my doubts.

If you want a good and PROVEN valvetrain, go Skunk2, Ferra, or Portflow. I would not trust anything from Crower. But do what you will, that's the mistake I made after hearing bad news prior to buying all my stuff....