Quote:
Originally Posted by Kenth
No love for the KB hypereutectic pistons? Aside from the needed larger gap on upper ring, which may be missed during assembly how bad can they be in a street engine?
Anyone used and broke them and why did they brake?
I have a set in my 421 with 4.16" bore, so far so good.
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Set up properly the KB Hypereutectic pistons work well. They run quiet, help the rings do their job due to the tight running clearance and keep heat in the combustion area..... Their down fall is they're detention intolerant and when they break you have catastrophic results.