Seems like DLC type coating might be a possibility for lifters. These are the type questions I like to talk directly to the manufacturers at PRI about. We have had one bad lifter failure on the dyno in the last year. An almost stock Ford 260 V-8 for a Falcon. Low spring pressure. Killed 3 lifters anyway. All typical precautions followed. Cam break-in paste used. High zinc break-in oil, 90 lbs. seat pressure, engine pre-lubed. Still killed the lifters and cam in about 40 minutes running time. It's a complete crap shoot.
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