Help Identifying HPFP Internals

Awafrican said:
No, all depends on the part and where the tolerance went off each one could be individually off in different portions and this fail differently some could more off than others, all depends on driver as well are the idling low load or being driven high rpm, poor oil changes? All are a factor.
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wheres science! boy?
 
Did some digging, looks like a KMD piston with beefed up factory retention head and no apparent coating really so probably PTP. Half ass spun on a lathe using other people's measurements and churned out with high fail rate (you're probably exceedingly lucky). Judging by the pic you've posted, its wearing quite hard and if you clean it out and run it by hand dry and feel any minute hitching or grabbing *at all* then it's time to get something that isn't about to fail on you.
 
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