Originally Posted by Pocket

Failures are uncommon but then they let go, they tear stuff up. If you're lucky, its just a few kissed valves. If you're unlucky like this guy, well sorry

I cant find the thread on LS1tech about it, but it was a GTO just cruising down the highway, heard a loud bang and then this

$40 for an in-stock item at most dealerships is well worth it IMHO. Same with rod bolts if you plan to spin it up