When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I'm not seeing either what springs they specified, what they supplied (both of those are blank on your cam card), what you used, or how they were set up. All I can see is a lifter roller that's got the classic beat to death from valve float. Whatever went wrong, if all 16 are like that, is universal throughout the engine. You do the math.
So what you're saying is that? Comp did an amazing job at specing Springs for it.
I've read that with some aggressive cams the lifter can lift off the lobe at peak. Is that enough to damage a lifter, I don't know, maybe someone else would.
Valve float is mostly the valve bouncing off the seat at the moment it's supposed to close. It's INCREDIBLY destructive. It's like taking a hammer to the valve train. Hard to wrap one's brain around, until we realize that the MINIMUM spring pressure exists at ZERO lift; meaning 2 things: just when the valve needs MAXIMUM control, it has MINIMUM pressure; and, carefully setting up springs to get their "maximum" allowed lift, means the MINIMUM spring pressures at all times. It's not so much "valve toss", where the valve doesn't stop at the top of its lift and gets launched off into space, although that can happen sometimes. Again, reason being, that's when the spring pressure is at its MAXIMUM, meaning, at that moment the spring has MAXIMUM control of valve motion.
You can almost NEVER have "too much" valve spring, in the real world. Most especially, seat pressure. Sure, it's "possible", butt hardly ever happens. Almost always, problems of this sort are the result of using the "minimum" "adequate" valve spring, then over-revving the motor, to where the valves are out of control. "Over revving" in this case refers to the valve train, not the short block; that is, it can occur without spinning rod bearings or breaking cranks or whatever. It's about valve train stability. What's in your pic is what I've seen COUNTLESS times over the years, of more RPMs than the valve train is capable of sustaining, caused by inadequate valve springs for the RPM that the motor was forced to run at.
I'm not seeing either what springs they specified, what they supplied (both of those are blank on your cam card), what you used, or how they were set up. All I can see is a lifter roller that's got the classic beat to death from valve float. Whatever went wrong, if all 16 are like that, is universal throughout the engine. You do the math.
I'm not denying the fact that it's probably Springs. Like everyone is saying. I'm just surprised considering you would think they would be able to spec a spring for their own cam.
We still don't know about that. No idea what springs they spec'ed since that part of that cam card is blank.
Furthermore, if their spec gave some upper RPM limit, and the motor regularly exceeded that as it appears, and/or they weren't set up (installed) properly, then... I can't see where that's their fault, or how that's a defense for explaining the damage
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.
What causes lifter where like this 
