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Super light Factory Honda pistons

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Old Jan 12, 2007 | 05:58 PM
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Default Super light Factory Honda pistons
Has anybody seen these yet?


this one is 95mm but they have 85mm
Yes OEM

Modified by Toddz Grafixxx at 7:16 PM 1/12/2007


Modified by Toddz Grafixxx at 7:23 PM 1/12/2007
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Old Jan 12, 2007 | 06:04 PM
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Default Re: Super light Factory Honda pistons (Toddz Grafixxx)
motorcycle?
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Old Jan 12, 2007 | 06:13 PM
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What is the bore size on them?
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Old Jan 12, 2007 | 06:20 PM
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Default Re: Super light Factory Honda pistons (Toddz Grafixxx)
oem??
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Old Jan 12, 2007 | 06:33 PM
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Hmmmmm, WTF? What motor?
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Old Jan 12, 2007 | 06:48 PM
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Default Re: (integrawow)
flat top pistons
out of a oem racing engine
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Old Jan 12, 2007 | 06:50 PM
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Okay, I just saw the specs just below the last picture.

Sorry!
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Old Jan 12, 2007 | 06:51 PM
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It would be nice to know specifically what they came in from the factory.
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Old Jan 12, 2007 | 06:58 PM
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I spy 2 compression rings that dont look overly skimpy, so im going to guess and say these are designed to see significant mileage.
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Old Jan 12, 2007 | 07:29 PM
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Default Re: Super light Factory Honda pistons (Toddz Grafixxx)
more info. what compression height??
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Old Jan 12, 2007 | 08:00 PM
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I have a hard time believing these things came out of anything other than a motorcycle engine....time to hit up wikipedia....

edit: honda trx-450r?? atv pistons??
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Old Jan 12, 2007 | 08:54 PM
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Default Re: Super light Factory Honda pistons (Toddz Grafixxx)
looks like a honda TRX 450 comes with a 96mm bore and a TRX 400 comes with the 85mm bore. dont know where this 95mm piston comes from yet. looks like we are getting closer
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Old Jan 12, 2007 | 09:31 PM
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Default Re: Super light Factory Honda pistons (1 2 NV)
they look identical to the pistons in my CRF 450 dirtbike.. free floating pin, coated with the tiny skirts
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Old Jan 12, 2007 | 09:53 PM
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Default Re: Super light Factory Honda pistons (mx621)
do the 85mm's fit a b-series rod?
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Old Jan 12, 2007 | 10:07 PM
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Default Re: Super light Factory Honda pistons (( o )( o ))
according to wisecos website they do take a 19mm pin. dont know how compatible they would be with a honda automotive rod.
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Old Jan 12, 2007 | 10:18 PM
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Interesting...
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Old Jan 12, 2007 | 10:19 PM
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Default Re: Super light Factory Honda pistons (alterdcreations)
man that looks willllllllllllllld
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Old Jan 12, 2007 | 10:22 PM
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Default Re: Super light Factory Honda pistons (SkankyEJ7)
i got my #s mixed up. eagle rod wristpins are 21mm which is too big for this "factory" honda piston. i suppose someone could rebush the small rod end. the other thing is whether the valve angles are compatible from motorcycle to automotive.
it looks like someones pipe dream to me.
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Old Jan 12, 2007 | 10:30 PM
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Default Re: Super light Factory Honda pistons (1 2 NV)
and there probably isnt much crown material to cut valve pockets. i just spent like 2 hours searching for ****. maybe he will fill us in on these top secret jems
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Old Jan 13, 2007 | 05:04 AM
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IRL
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Old Jan 13, 2007 | 07:06 AM
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vestalfootball72
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Default Re: (mike_belben@yahoo.com)
look like CRF450 pistons to me
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Old Jan 13, 2007 | 07:19 AM
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Default Re: (vestalfootball72)
yeah look like a 450f motocross piston for sure
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Old Jan 13, 2007 | 08:28 AM
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Default Re: (flesh199)
short stroke, short skirt
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Old Jan 13, 2007 | 11:22 AM
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Default Re: (alterdcreations)
Yes it is a CRF 450 piston.But look at how light it is.And i think you could use the 85mm one in a B series motor.The piston is so light that you could get away with smaller pin.When i saw this thing I couldn't believe how cut down it was from the factory.But I guess thats why they will buzz 13,000.
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Old Jan 13, 2007 | 12:28 PM
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Default Re: (Toddz Grafixxx)
Just a random guess, but I bet the stroke is a "little" shorter.
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