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Piston Pin Length
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Powerflite
Posted 2020-05-08 12:42 AM (#597931)
Subject: Piston Pin Length



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I would like to replace the piston pins on my OEM 392 hemi pistons. The originals are about 0.003" longer than the new ones. Is that a problem? I don't know what the tolerance is on the length or what issues could arise from it being a little short.
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58coupe
Posted 2020-05-08 11:27 AM (#597946 - in reply to #597931)
Subject: Re: Piston Pin Length



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These are full floating pins correct? As long as the the keepers (circlips?) fit in the grooves properly, I don't see any problem. Are you worried a bout a weight difference?

Edited by 58coupe 2020-05-08 11:28 AM
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Powerflite
Posted 2020-05-08 2:29 PM (#597955 - in reply to #597931)
Subject: Re: Piston Pin Length



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Yes, full floating. I think they may have made them shorter because the new style clips are bigger at .071" wire diameter, whereas the old style clips are .06" wire diameter. I guess I could run all new clips, but I'm not sure they would be compatible with the old piston grooves. As long as I am running all new pins, any weight difference shouldn't matter.

Edited by Powerflite 2020-05-08 2:32 PM
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