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Power Strokes
6.4 Aftermarket
Why did my valve hit my piston?
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[QUOTE="B585Ford, post: 998212, member: 5497"] I still vote heat and crappy design of piston are the biggest contributors although I am sure kissing the piston may be a factor in a quite a number of cracked pistons. I came to that conclusion because at least so far, you don't hear of many cracked modified pistons (delipped factory or IH). Very few guys with a tuner only/small build monitor EBP so there may be a lot more floating valves on relatively stock trucks than people realize. [/QUOTE]
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Why did my valve hit my piston?
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