keith blacks in a 340?

dgc333 said
The only reason that poeple complain about KB Hypereutetic pistons is they didn't follow the instructions for end gap and break a piston when the ring ends hit or because the instructions say to set them much wider they assume there will be more leak down.
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I'll 3rd that. I used to read it all the time. Nothing like ignoring instructions.
I have used them in a 360 before without any issue's at all. The HyperU's are stronger than the regular cast pistons but not as strong as the fordged units.