full floating wristpins vs. pressed wristpins

yes but you can get them cheaper than that. $3.80 a pop at rock: Sealed Power, not junk.
1968 DODGE DART 5.6L 340cid V8 Piston Pin Bushing | RockAuto

Also converting stock rods to floaters is probably more expensive than buying a set of 8 340 floater rods off this site. Seen them go for $40 a set.

Anyone got any advice using Teflon wrist pin buttons on floaters with no lock grooves? Soft enough not to damage the cylinders, tough enough to survive air cooled VW's...?
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They are fine for a race engine that you pull down frequently. I would not use them in a daily driver. Worked with a guy that raced a Porsche. He used them in the skirts. Good for one race.