Hi guys, I'm back. My computer had to be worked on for a few days. I wasn't sure what to think of that guy's statement to change over to hydraulic lifters; honestly don't know much about solids. Thanks for the education by the way. I'm pretty sure I'd have read about that change-over on the forum by now. My truck is in a bunch of pieces waiting for an engine/tranny swap, among other things, so noisy lifters aren't bothering me much anyway. Some interesting posts, thanks for answering.