Originally Posted by mxhideout
I bought the 6.0 out of a 2500 (same engine base as 5.3) for my drag car project. Was told it had a noisy lifter. I pulled it apart because I wanted to put a bigger cam in it anyway, and to our surprise, a chunk was missing on one of the stock cam lobes. Hopefully yours isn't that bad, but I just figured I'd post it here since we're talking about it.
Wow, that is a strange one.