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Old Aug 23, 2004 | 07:21 PM
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What are "hypereutectic" pistons and what is the benifit of having them?
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Old Aug 23, 2004 | 07:37 PM
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Hypereutectic pistons has a higher silicon content for rigidity. They take a greater pounding than a cast piston and is cheaper than forged.
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Old Aug 23, 2004 | 08:23 PM
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Thank you Corey 68
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Old Aug 23, 2004 | 08:35 PM
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They also don't expand like forged pistons therefore can right a tighter piston to bore spec. This makes them a little quieter on startup than forged pistons. For an occasional blast down the quater or street they are fine. For sustained high rpm forged is the way to go.
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Old Aug 24, 2004 | 12:14 PM
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my uncles blown 406 melted these...if you are going real HP, go forged.
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Old Aug 24, 2004 | 12:39 PM
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Originally Posted by terrible_buddhist
my uncles blown 406 melted these...if you are going real HP, go forged.
I've seen a juiced 509 run hypereutetics all season. I've also seen forged pistons in the same engine last less than 5 seconds. Lean it out, pay the price.
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Old Aug 24, 2004 | 12:43 PM
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Yea, I might invest in some of those pistons soon
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