Hate to see this happen! I had been considering a retro-fit of that nature on one of my cars. In consulting an associate about the possibility of such a failure, he said he'd not seen such failures (when I inquired several months ago).
As for CompCam's response, unfortunately it was accurate. Their stated LIABILITY is only what their warranty specifies . . . as a minimum, not meaning that MIGHT be all they could do. It's at THEIR OPTION to go further, especially in that 6500 miles might have happened in 3 months or 3 years. If the installation was done in a mechanic shop, with related work orders and information thereon, you'd have a time line from which you could point. With only a sales invoice for the purchase of the product, not so much. The kit could have been bought 5 years ago (although there are probably some "marks" on the parts they could use to determine such), expecting them to go by a "when installed" date rather than a "when purchased" date might be unreasonable. Either way, their ultimate reputation is riding on them selling very durable products.
Usually, the claims of "publishing" will not generally have the affect of hitting all desired markets. Not nearly like a billboard beside the road, for example. The other thing is that it will do little to motivate CompCams to do anything. You can't use your one failure to project into the larger market, either. Nor will or can it extend into "common knowledge" areas, just because it's in "electronic media" (which large parts of the population might be on, but not "following" car items with).
Typically, "warranties" are between the seller and the ultimate purchaser. But if you purchased the kit from a vendor and not directly from Comp, you might try that avenue. BUT be prepared for Comp to claim the intermediary is not a party to the warranty, per se. BUT if the intermediary vendor purchases a lot of product from Comp (or related companies), it might have a little more "weight" as it can also affect THEIR future business or business they might do with Comp. No guarantees, either way, though, as Comp is the ultimate decider of what they warranty.
Getting to the higher levels within Comp (or who owns them) might be tricky as that would require your communications to get past several levels of "filters". Might take some time.
In the mean time, take everything apart, retrieve ALL related loose items found in the engine/oil pan, document with pictures (cam/lifters, other lifters/tie bars, engine bearings, cam lobes, etc.), bag it all up for future reference, get the engine cleaned up and ready for rebuild.
As that particular system of roller lifter alignment has been used for over 50 years, there should be no failures of tie bars and such at this time. The original uses were in pure drag racing engines, with much intense valve timing events than any "street-driven" car might even have, by observation. But, of less run time exposure. If anything was suspect, it should have been exposes well before now. Or fixed! No cam company desires to have a drag racer lose an engine in a final round due to component failure. Such a failure would have resulted in the loss of many $$$$$ to the racer, possible related future business, and word-of-mouth negativity in places the cam company didn't desire it to be, IF blame could be placed on the cam company for the loss of the race. Be that as it may.
As stated, their liability is for the stated warranty period. They wrote the warranty, they work within those stated boundaries, BUT they can also get outside of those boundaries at their discretion. Which can be an area where "Customer Service" can be further defined. But you've got to get past those initial "filters" to get to where somebody can authorize such "above and beyond" situations.
At least this failure was not on a flat-tappet cam, where a lobe failure could have been easily laid-off as "lubrication" or "installation initial lube" or "lack of proper break-in procedures" could have been their first response, followed by "Sorry, no warranty".
Good luck and let us know how things go.
CBODY67
