Quote:
Originally Posted by Shaolin Crane
Exactly, you are no where near an OE setup any more and skimping on valve train, as you have just learned personally is a recipe for disaster, anything more than 120lbs on a spring and you should have link bars, as well as anything over .550 lift. Like I said before "big" is relative. What makes a cam "big"? Lots of lift? Lots of duration? Don't skimp on the valve train.
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I get your point, I guess it's relative. I'm beyond OE for sure, but pretty moderate compared to nutters. FTM my LS1 lifters (and rockers) look 100% fine. I'll bring it up again and make sure we're on the same page.
My primary failure was a rod bearing, that's what was making noise and best guess indicates a detonation precipitated the impending failure. Pulling it apart we discovered (so far) a broken ring and a chewed up cam. Previously it was an AM spring that popped. Unless I'm forgetting something, nothing OE in the valve train failed or even looks tired.
It's not a lot of money difference, so that's not my concern here, but spending a few hundred dollars extra for nothing more than a little more valve train noise in reality doesn't appeal to me either.