I found these Used NASCAR Solid Roller Lifters on eBay. I know these guys are using very high spring pressures and probably turning 9500 rpm, but look at that scuffing! These look pretty bad to me, and it makes me think - what the hell do the lifter bores look like?
yeah they look like they belong in a dumpster,
but keep in mind the nascar guys feel the lifters are like spark plugs , and disc brake pads,
, an expendable component that replaced regularly as needed
When A Roller Lifter Fails Goodbye Engine.
Hopefully magnets catch all if used.
Be Surprised just what one tiny needle bearing does bouncing around hitting the crankshaft.