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Re: TBI 350, Taper & Out of Bore....
I was told--decades ago--that the limit for taper on a "rebuild it and sell it" job is .007. I would expect an engine built with with "seven thou" of taper to be a time-bomb in terms of oil consumption, and with a possibility of piston knock and reduced power.
I'd expect those cylinders when new were 4.000". You're showing that the bore wear at the tops of the cylinders is as much as .035. To me, that's your cylinder taper (bellmouth). About half of the "worst acceptable" figure as I understood it.
Yeah, you could put it together. It should work for awhile. Taper and out-of-round is hard on rings and ring lands. I'm not saying I recommend it, and I can't figure out why you'd spend the money to put new pistons into worn bores. Assure that you have adequate ring end-gap in the least-worn part of the bore.
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